1071991 (number)
1,071,991 (one million seventyone thousand nine hundred ninetyone) is an odd sevendigits prime number following 1071990 and preceding 1071992. In scientific notation, it is written as 1.071991 × 10^{6}. The sum of its digits is 28. It has a total of 1 prime factor and 2 positive divisors. There are 1,071,990 positive integers (up to 1071991) that are relatively prime to 1071991.
Basic properties
 Is Prime? Yes
 Number parity Odd
 Number length 7
 Sum of Digits 28
 Digital Root 1
Name
Short name  1 million 71 thousand 991 

Full name  one million seventyone thousand nine hundred ninetyone 
Notation
Scientific notation  1.071991 × 10^{6} 

Engineering notation  1.071991 × 10^{6} 
Prime Factorization of 1071991
Prime Factorization 1071991
Prime numberω(n)  Distinct Factors  1  Total number of distinct prime factors 

Ω(n)  Total Factors  1  Total number of prime factors 
rad(n)  Radical  1071991  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  13.885028225055  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 1,071,991 is 1071991. Since it has a total of 1 prime factor, 1,071,991 is a prime number.
Divisors of 1071991
2 divisors
τ(n)  Total Divisors  2  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  1071992  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  535996  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  1035.3699821803  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  1.9999981343144  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 1,071,991 can be divided by 2 positive divisors (out of which 0 are even, and 2 are odd). The sum of these divisors (counting 1,071,991) is 1,071,992, the average is 535,996.
Other Arithmetic Functions (n = 1071991)
φ(n)  Euler Totient  1071990  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  1071990  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 83529  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 1,071,990 positive integers (less than 1,071,991) that are coprime with 1,071,991. And there are approximately 83,529 prime numbers less than or equal to 1,071,991.
Divisibility of 1071991
m  2  3  4  5  6  7  8  9 

n mod m  1  1  3  1  1  4  7  1 
1,071,991 is not divisible by any number less than or equal to 9.
Classification of 1071991
By Arithmetic functions
 Arithmetic
 Prime
 Deficient
Expressible via specific sums
 Polite
 Nonhypotenuse
By Powers
 Prime Power
 Square Free
Base conversion (1071991)
Base  System  Value 

2  Binary  100000101101101110111 
3  Ternary  2000110111101 
4  Quaternary  10011231313 
5  Quinary  233300431 
6  Senary  34550531 
8  Octal  4055567 
10  Decimal  1071991 
12  Duodecimal  438447 
16  Hexadecimal  105b77 
20  Vigesimal  6djjb 
36  Base36  mz5j 
Basic calculations (n = 1071991)
Multiplication
n×yn×2  2143982 

n×3  3215973 
n×4  4287964 
n×5  5359955 
Division
n÷yn÷2  535995.500 

n÷3  357330.333 
n÷4  267997.750 
n÷5  214398.200 
Exponentiation
n^{y}n^{2}  1149164704081 

n^{3}  1231894220292495271 
n^{4}  1320579517105572298054561 
n^{5}  1415649357121519553363806900951 
Nth Root
^{y}√n^{2}√n  1035.3699821803 

^{3}√n  102.34431252532 
^{4}√n  32.177165539871 
^{5}√n  16.070827068037 
1071991 as geometric shapes
Circle
Radius = nDiameter  2143982 

Circumference  6735518.1006288 
Area  3610207392105.6 
Sphere
Radius = nVolume  5.1601464432942E+18 

Surface area  14440829568422 
Circumference  6735518.1006288 
Square
Length = nPerimeter  4287964 

Area  1149164704081 
Diagonal  1516024.2109419 
Cube
Length = nSurface area  6894988224486 

Volume  1231894220292495271 
Space diagonal  1856742.8772566 
Equilateral Triangle
Length = nPerimeter  3215973 

Area  497602913433.29 
Altitude  928371.43862828 
Triangular Pyramid
Length = nSurface area  1990411653733.1 

Volume  1.4518012614556E+17 
Height  875276.98628529 
Cryptographic Hash Functions
md5  7d17904570a8914f507f0b96a75fa236 

sha1  4e546a9cdb11117e19240964778b247975f18e8f 
sha256  607ad436c1146107274ace3e549ba37f32fcdb6f49e74c6f130ef1b81a970067 
sha512  2da425a1194a49cc96e0e7659a376994dc68d29080a1fb9b91c5432186e17dc7fe201fcf27199c4cd6277d7f9c45de30397a8863d2154cc9e62c77dbaa040685 
ripemd160  d026df84db2ad3d7ba7ff8eae7d052088efc7c8d 