31491812 (number)

31491812 is an even 8-digits composite number following 31491811 and preceding 31491813. In scientific notation, it is written as 3.1491812 × 10^7. The sum of its digits is 29. It has a total of 5 prime factors and 24 positive divisors. There are 14178560 positive integers (up to 31491812) that are relatively prime to 31491812.

Interesting facts

Basic properties

Name

Name thirty-one million four hundred ninety-one thousand eight hundred twelve

Notation

Scientific notation 3.1491812 × 10^7
Engineering notation 3.1491812 × 10^6

Prime Factorization of 31491812

Prime Factorization 2 × 2 × 11 × 107 × 6689

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 15745906
Product of the distinct prime numbers

The prime factorization of 31491812 is 2 × 2 × 11 × 107 × 6689. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 3, 28, 63, 865, 30, 262, 3445, 97008, 85784, 983623, 867139, 4828091, 2980244, 2243998, 60686210, 474496156, 464165716, 887135799, 1658253129

Basic calculations (n = 31491812)

Multiplication

n×y
n×2 62983624
n×3 94475436
n×4 125967248
n×5 157459060

Division

n÷y
n÷2 15745906
n÷3 10497270.666667
n÷3 7872953
n÷5 6298362.4

Exponentiation

ny
n2 991734223043344
n3 3.1231507706047E+22
n4 9.8353676915539E+29
n5 3.0973355029329E+37

Nth Root

y√n
2√n 5611.7565877361
3√n 315.79061330388
4√n 74.911658556837
5√n 31.596540182394

Divisors of 31491812

1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4708, 6689, 13378, 26756, 73579, 147158, 294316, 715723, 1431446, 2862892, 7872953, 15745906, 31491812

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31491811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31491812 can be divided by 24 positive divisors. The sum of these divisors (counting 31491812) is 1, the average is 0.041666666666667.

Base conversion 31491812

Base System Value
2 Binary 1111000001000011011100100
3 Ternary 2012020221122102
4 Quaternary 1320020123210
5 Quinary 31030214222
6 Senary 3042551232
8 Octal 170103344
10 Decimal 31491812
12 Duodecimal a668518
16 Hexadecimal 1e086e4
20 Vigesimal 9gg9ac
36 Base36 iqz8k

Cryptographic Hash Functions

md5 ff38a82fea9c75175a4af155edc9a44b
sha1 2323680eac683b2fb3b767e969cd26854b24a3e8
sha256 841ee0204717fb423d5c188a97943fb57d3d7263764b63d1975afcf3359baecd
sha512 fd1882c7890b79cfef4aef32196f98260333d27c9641950048272f6a67456b8a2a42b2dbdc26686772e84697d5b92f72328cc6173d7010bbd5b624aea9c7edfa
ripemd-160 63a412cf8aac05d13a022297375961a2f845b50b

31491812 as geometric shapes

Circle

Radius = n
Diameter 62983624
Circumference 197868890.45486
Area 3.1156249494266E+15

Sphere

Radius = n
Volume 1.308222335598E+23
Surface area 1.2462499797706E+16
Circumference 197868890.45486

Square

Length = n
Perimeter 125967248
Area 991734223043344
Diagonal 44536147.634104

Cube

Length = n
Surface area 5950405338260064
Volume 3.1231507706047E+22
Space diagonal 54545418.406407

Equilateral Triangle

Length = n
Perimeter 94475436
Area 4.2943351547898E+14
Altitude 27272709.203204

Triangular Pyramid

Length = n
Surface area 4.2943351547898E+14
Volume 3.6806684809376E+21
Height 14845382.544701