31981888 (number)

31981888 is an even 8-digits composite number following 31981887 and preceding 31981889. In scientific notation, it is written as 3.1981888 × 10^7. The sum of its digits is 46. It has a total of 7 prime factors and 14 positive divisors. There are 15990912 positive integers (up to 31981888) that are relatively prime to 31981888.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred eighty-one thousand eight hundred eighty-eight

Notation

Scientific notation 3.1981888 × 10^7
Engineering notation 3.1981888 × 10^6

Prime Factorization of 31981888

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 499717

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 999434
Product of the distinct prime numbers

The prime factorization of 31981888 is 2 × 2 × 2 × 2 × 2 × 2 × 499717. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 6, 39, 57, 609, 648, 221, 7331, 64874, 84965, 166373, 450796, 7598867, 1231249, 49302349, 44077983, 614836663, 875690661, 4611106426, 8981511984

Basic calculations (n = 31981888)

Multiplication

n×y
n×2 63963776
n×3 95945664
n×4 127927552
n×5 159909440

Division

n÷y
n÷2 15990944
n÷3 10660629.333333
n÷3 7995472
n÷5 6396377.6

Exponentiation

ny
n2 1022841160044544
n3 3.2712391422335E+22
n4 1.0462040386813E+30
n5 3.3459580390252E+37

Nth Root

y√n
2√n 5655.2531331497
3√n 317.42030115631
4√n 75.201417095356
5√n 31.69427483839

Divisors of 31981888

1, 2, 4, 8, 16, 32, 64, 499717, 999434, 1998868, 3997736, 7995472, 15990944, 31981888

14 divisors

τ Total Divisors 14
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31981887
Sum of the proper positive divisors of n
A Arithmetic Mean 0.071428571428571
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 14
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31981888 can be divided by 14 positive divisors. The sum of these divisors (counting 31981888) is 1, the average is 0.071428571428571.

Base conversion 31981888

Base System Value
2 Binary 1111010000000000101000000
3 Ternary 2020011211220101
4 Quaternary 1322000011000
5 Quinary 31141410023
6 Senary 3101252144
8 Octal 172000500
10 Decimal 31981888
12 Duodecimal a864054
16 Hexadecimal 1e80140
20 Vigesimal 9jhee8
36 Base36 j1hds

Cryptographic Hash Functions

md5 f2f33188aabc18693f4932722b92ab3c
sha1 508f10d5c7b5309540387afed127545f4d59bb44
sha256 eb8c709119abd99dd23b629af87f792a31cea470593138e37e1b03dcfc93f7cd
sha512 2745a4d51f258501d68dd90fa8e3e032c66377bfd640e3e667cfff2a0e051305365a7d3b44b03a50fba1c862b2be11600b2577a3a78e2f6f9f51f99d68d6022f
ripemd-160 07d2e6d9889c0708e1006f9b6811cbcec0350841

31981888 as geometric shapes

Circle

Radius = n
Diameter 63963776
Circumference 200948128.77746
Area 3.2133502741852E+15

Sphere

Radius = n
Volume 1.3702534476501E+23
Surface area 1.2853401096741E+16
Circumference 200948128.77746

Square

Length = n
Perimeter 127927552
Area 1022841160044544
Diagonal 45229219.759897

Cube

Length = n
Surface area 6137046960267264
Volume 3.2712391422335E+22
Space diagonal 55394254.937977

Equilateral Triangle

Length = n
Perimeter 95945664
Area 4.4290321431746E+14
Altitude 27697127.468989

Triangular Pyramid

Length = n
Surface area 4.4290321431746E+14
Volume 3.8551923005936E+21
Height 15076406.586632