31996987 (number)

31996987 is an odd 8-digits composite number following 31996986 and preceding 31996988. In scientific notation, it is written as 3.1996987 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 29088160 positive integers (up to 31996987) that are relatively prime to 31996987.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred ninety-six thousand nine hundred eighty-seven

Notation

Scientific notation 3.1996987 × 10^7
Engineering notation 3.1996987 × 10^6

Prime Factorization of 31996987

Prime Factorization 11 × 2908817

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31996987
Product of the distinct prime numbers

The prime factorization of 31996987 is 11 × 2908817. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 76, 82, 551, 686, 6243, 2194, 59262, 76110, 910264, 644462, 5817642, 6380689, 50520991, 43952751, 932466169, 906625877, 1360916860, 5412046988

Basic calculations (n = 31996987)

Multiplication

n×y
n×2 63993974
n×3 95990961
n×4 127987948
n×5 159984935

Division

n÷y
n÷2 15998493.5
n÷3 10665662.333333
n÷3 7999246.75
n÷5 6399397.4

Exponentiation

ny
n2 1023807177078169
n3 3.2758744935477E+22
n4 1.0481811358368E+30
n5 3.3538638177014E+37

Nth Root

y√n
2√n 5656.5879291318
3√n 317.4702458322
4√n 75.210291377788
5√n 31.697266916341

Divisors of 31996987

1, 11, 2908817, 31996987

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31996986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31996987 can be divided by 4 positive divisors. The sum of these divisors (counting 31996987) is 1, the average is 0.25.

Base conversion 31996987

Base System Value
2 Binary 1111010000011110000111011
3 Ternary 2020012121121121
4 Quaternary 1322003300323
5 Quinary 31142400422
6 Senary 3101450111
8 Octal 172036073
10 Decimal 31996987
12 Duodecimal a870937
16 Hexadecimal 1e83c3b
20 Vigesimal 9jjc97
36 Base36 j1t17

Cryptographic Hash Functions

md5 7a64141b4b9a14e9735b07655e16324e
sha1 f3fc8c4e06dc705508941bc70ca9c9e2bb1e3a54
sha256 9f902a341184902e386a69e24901e666597b6f617bef59c138d3b4d9e088ebf6
sha512 ffb57d71de973ac4662dab2016633bdf7b3fc93256b73b0654653af2e8df12336de9cd1c156ff40fc954fe598d0b46e364d230ddf8bf117db832e319fb4c4d94
ripemd-160 66111ecc20422639fba02d0b3b88d450f7e9e1f5

31996987 as geometric shapes

Circle

Radius = n
Diameter 63993974
Circumference 201042998.59242
Area 3.2163851062013E+15

Sphere

Radius = n
Volume 1.3721950990682E+23
Surface area 1.2865540424805E+16
Circumference 201042998.59242

Square

Length = n
Perimeter 127987948
Area 1023807177078169
Diagonal 45250572.970476

Cube

Length = n
Surface area 6142843062469014
Volume 3.2758744935477E+22
Space diagonal 55420407.173121

Equilateral Triangle

Length = n
Perimeter 95990961
Area 4.4332151196326E+14
Altitude 27710203.58656

Triangular Pyramid

Length = n
Surface area 4.4332151196326E+14
Volume 3.860655114506E+21
Height 15083524.323492