90131987 (number)

90131987 is an odd 8-digits composite number following 90131986 and preceding 90131988. In scientific notation, it is written as 9.0131987 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 81938160 positive integers (up to 90131987) that are relatively prime to 90131987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.0131987 × 10^7
Engineering notation 9.0131987 × 10^6

Prime Factorization of 90131987

Prime Factorization 11 × 8193817

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 90131987
Product of the distinct prime numbers

The prime factorization of 90131987 is 11 × 8193817. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 85, 16, 411, 637, 5089, 2157, 71858, 61197, 46194, 53322, 5695123, 7477578, 66028337, 36912869, 201588315, 276088340, 9704449618, 7001185917

Basic calculations (n = 90131987)

Multiplication

n×y
n×2 180263974
n×3 270395961
n×4 360527948
n×5 450659935

Division

n÷y
n÷2 45065993.5
n÷3 30043995.666667
n÷3 22532996.75
n÷5 18026397.4

Exponentiation

ny
n2 8123775080568169
n3 7.3221198995269E+23
n4 6.599572155966E+31
n5 5.9483255176709E+39

Nth Root

y√n
2√n 9493.7867576642
3√n 448.35943697446
4√n 97.436064974239
5√n 38.992024891011

Divisors of 90131987

1, 11, 8193817, 90131987

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 -90131986
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 90131987 can be divided by 4 positive divisors. The sum of these divisors (counting 90131987) is 1, the average is 0.25.

Base conversion 90131987

Base System Value
2 Binary 101010111110100111000010011
3 Ternary 20021121011211202
4 Quaternary 11113310320103
5 Quinary 141033210422
6 Senary 12535501415
8 Octal 527647023
10 Decimal 90131987
12 Duodecimal 2622786b
16 Hexadecimal 55f4e13
20 Vigesimal 18369j7
36 Base36 1hnuab

Cryptographic Hash Functions

md5 294a5e9b70f0e24b308666efc0eebb3f
sha1 a23e4ccc3de186000ea4a1130509e3bbd0995487
sha256 1a23ede863f5f61857125ab726645935f660a8a97995e697dd63b52470115bde
sha512 11939d2d00ff61dd38c3897ab13630a6ccc2f117dfa47867e81924a31c0d32d60cc7accebab2f83da68ca5de62a9297037fb3d0b798ef8841847e165cc9e155a
ripemd-160 03e8b4b9d5af5b1534a20e63d8d8920d5eced5a7

90131987 as geometric shapes

Circle

Radius = n
Diameter 180263974
Circumference 566315976.4253
Area 2.5521592112529E+16

Sphere

Radius = n
Volume 3.067082411341E+24
Surface area 1.0208636845012E+17
Circumference 566315976.4253

Square

Length = n
Perimeter 360527948
Area 8123775080568169
Diagonal 127465878.41904

Cube

Length = n
Surface area 48742650483409014
Volume 7.3221198995269E+23
Space diagonal 156113180.87114

Equilateral Triangle

Length = n
Perimeter 270395961
Area 3.5176977972015E+15
Altitude 78056590.435569

Triangular Pyramid

Length = n
Surface area 3.5176977972015E+15
Volume 8.6292010560274E+22
Height 42488626.139679