31191280 (number)

31191280 is an even 8-digits composite number following 31191279 and preceding 31191281. In scientific notation, it is written as 3.1191280 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 20 positive divisors. There are 12476480 positive integers (up to 31191280) that are relatively prime to 31191280.

Interesting facts

Basic properties

Name

Name thirty-one million one hundred ninety-one thousand two hundred eighty

Notation

Scientific notation 3.1191280 × 10^7
Engineering notation 3.1191280 × 10^6

Prime Factorization of 31191280

Prime Factorization 2 × 2 × 2 × 2 × 5 × 389891

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 3898910
Product of the distinct prime numbers

The prime factorization of 31191280 is 2 × 2 × 2 × 2 × 5 × 389891. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 7, 100, 85, 276, 145, 5127, 5384, 6649, 93906, 52918, 416281, 1014530, 104759, 74008366, 22150367, 837808771, 908284183, 5068510432, 7633961953

Basic calculations (n = 31191280)

Multiplication

n×y
n×2 62382560
n×3 93573840
n×4 124765120
n×5 155956400

Division

n÷y
n÷2 15595640
n÷3 10397093.333333
n÷3 7797820
n÷5 6238256

Exponentiation

ny
n2 972895948038400
n3 3.0345869926131E+22
n4 9.4652652570954E+29
n5 2.9523373890833E+37

Nth Root

y√n
2√n 5584.9153977478
3√n 314.78285193714
4√n 74.732291532829
5√n 31.536002361949

Divisors of 31191280

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389891, 779782, 1559564, 1949455, 3119128, 3898910, 6238256, 7797820, 15595640, 31191280

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31191279
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31191280 can be divided by 20 positive divisors. The sum of these divisors (counting 31191280) is 1, the average is 0.05.

Base conversion 31191280

Base System Value
2 Binary 1110110111111000011110000
3 Ternary 2011200200101121
4 Quaternary 1312333003300
5 Quinary 30441110110
6 Senary 3032312024
8 Octal 166770360
10 Decimal 31191280
12 Duodecimal a542614
16 Hexadecimal 1dbf0f0
20 Vigesimal 9eii40
36 Base36 ikjcg

Cryptographic Hash Functions

md5 0a8d0555a80ee3f567c3114637e848ac
sha1 992df0959508d3d3a6d95ee3c75ff08f82678384
sha256 445246beb20b41a2f2dc14b295c1c8d4b05e43c2e35bfb519dd8d1f72cb3d6d0
sha512 b07f5721d75ecefbeaae8359d6f15f57a98886ef314a31ab66e1e99c76703b15eaa6ef6893b680939797329a4113fd7eb49b2c56c3ae7520eba758f49f4b2e7a
ripemd-160 3f162d7a2b94ba20a514fc9029d07ffe99412961

31191280 as geometric shapes

Circle

Radius = n
Diameter 62382560
Circumference 195980592.20812
Area 3.0564427630647E+15

Sphere

Radius = n
Volume 1.271124827023E+23
Surface area 1.2225771052259E+16
Circumference 195980592.20812

Square

Length = n
Perimeter 124765120
Area 972895948038400
Diagonal 44111131.203777

Cube

Length = n
Surface area 5837375688230400
Volume 3.0345869926131E+22
Space diagonal 54024881.713107

Equilateral Triangle

Length = n
Perimeter 93573840
Area 4.212763031201E+14
Altitude 27012440.856553

Triangular Pyramid

Length = n
Surface area 4.212763031201E+14
Volume 3.5762950676287E+21
Height 14703710.401259