28931889 (number)

28931889 is an odd 8-digits composite number following 28931888 and preceding 28931890. In scientific notation, it is written as 2.8931889 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors. There are 15384384 positive integers (up to 28931889) that are relatively prime to 28931889.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931889 × 10^7
Engineering notation 2.8931889 × 10^6

Prime Factorization of 28931889

Prime Factorization 3 × 7 × 59 × 19 × 1229

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28931889
Product of the distinct prime numbers

The prime factorization of 28931889 is 3 × 7 × 59 × 19 × 1229. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 9, 69, 45, 701, 838, 2761, 4043, 25451, 96408, 407307, 433328, 9644659, 4994181, 86667007, 64875240, 756143285, 112007382, 4172349396, 5574033508

Basic calculations (n = 28931889)

Multiplication

n×y
n×2 57863778
n×3 86795667
n×4 115727556
n×5 144659445

Division

n÷y
n÷2 14465944.5
n÷3 9643963
n÷3 7232972.25
n÷5 5786377.8

Exponentiation

ny
n2 837054201108321
n3 2.421755923345E+22
n4 7.0065973559309E+29
n5 2.0271409696949E+37

Nth Root

y√n
2√n 5378.8371419852
3√n 306.99096692397
4√n 73.340555915436
5√n 31.065286127261

Divisors of 28931889

1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 1121, 1229, 1239, 3363, 3687, 7847, 8603, 23351, 23541, 25809, 70053, 72511, 163457, 217533, 490371, 507577, 1377709, 1522731, 4133127, 9643963, 28931889

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28931888
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931889 can be divided by 32 positive divisors. The sum of these divisors (counting 28931889) is 1, the average is 0.03125.

Base conversion 28931889

Base System Value
2 Binary 1101110010111011100110001
3 Ternary 2000102220002110
4 Quaternary 1232113130301
5 Quinary 24401310024
6 Senary 2512035533
8 Octal 156273461
10 Decimal 28931889
12 Duodecimal 9832ba9
16 Hexadecimal 1b97731
20 Vigesimal 90g9e9
36 Base36 h83zl

Cryptographic Hash Functions

md5 ef0de5ef760f514af9a98c60c4d12950
sha1 21b6060db4aa153ed7b7318e7963b461caaf3704
sha256 45731df53be50291fd268f6b63636ebe775bf41e18c2a1676e388b8f0d801820
sha512 2b97a220042917dc0194b9f5b545e0618dc48cc41ea5ec1a29d4de708c0200ff7575376037cacf1408565cbb4bf5b2ac80ca7aa3077cab39feb94fb2943ea714
ripemd-160 39c35888327725af3310677424ee69dc7e63e694

28931889 as geometric shapes

Circle

Radius = n
Diameter 57863778
Circumference 181784419.87375
Area 2.6296833288584E+15

Sphere

Radius = n
Volume 1.0144227490091E+23
Surface area 1.0518733315433E+16
Circumference 181784419.87375

Square

Length = n
Perimeter 115727556
Area 837054201108321
Diagonal 40915869.808873

Cube

Length = n
Surface area 5022325206649926
Volume 2.421755923345E+22
Space diagonal 50111501.706943

Equilateral Triangle

Length = n
Perimeter 86795667
Area 3.6245510125215E+14
Altitude 25055750.853472

Triangular Pyramid

Length = n
Surface area 3.6245510125215E+14
Volume 2.8540667262932E+21
Height 13638623.269624