Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

28931389 (number)

28931389 is an odd 8-digits composite number following 28931388 and preceding 28931390. In scientific notation, it is written as 2.8931389 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 28258524 positive integers (up to 28931389) that are relatively prime to 28931389.

Interesting facts

28931389 has 4 divisors, whose sum is 29604256
The reverse of 28931389 is 98313982
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

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

Notation

Scientific notation	2.8931389 × 10^7
Engineering notation	2.8931389 × 10^6

Prime Factorization of 28931389

Prime Factorization 43 × 672823

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28931389	Product of the distinct prime numbers

The prime factorization of 28931389 is 43 × 672823. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 4, 55, 52, 268, 604, 9, 5720, 15427, 66558, 316004, 469335, 7008408, 8918191, 90763957, 8977796, 338378271, 64171895, 7649595607, 4544262015

Basic calculations (n = 28931389)

Multiplication

n×y

n×2	57862778
n×3	86794167
n×4	115725556
n×5	144656945

Division

n÷y

n÷2	14465694.5
n÷3	9643796.3333333
n÷3	7232847.25
n÷5	5786277.8

Exponentiation

n^y

n²	837025269469321
n³	2.4216303673847E+22
n⁴	7.0061130173019E+29
n⁵	2.0269658108152E+37

Nth Root

^y√n

²√n	5378.7906633369
³√n	306.98919844435
⁴√n	73.340239046085
⁵√n	31.065178752658

Divisors of 28931389

1, 43, 672823, 28931389

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	-28931388	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 28931389 can be divided by 4 positive divisors. The sum of these divisors (counting 28931389) is 1, the average is 0.25.

Base conversion 28931389

Base	System	Value
2	Binary	1101110010111010100111101
3	Ternary	2000102212101221
4	Quaternary	1232113110331
5	Quinary	24401301024
6	Senary	2512033341
8	Octal	156272475
10	Decimal	28931389
12	Duodecimal	9832851
16	Hexadecimal	1b9753d
20	Vigesimal	90g899
36	Base36	h83lp

Cryptographic Hash Functions

md5	9f6bcbaf037bd76d998c3d7670e474e5
sha1	dbb1402d563ceb5818f10752f11dbe09a0a7297f
sha256	e5d3885809b7b2a1ce619aecd1b89d499a5eac4c6d66ba0163217618da996bb1
sha512	c8b4d1cc9888fe84a4317d55584654ef06bc34e8d5958c13b9011d9e66d3331578fb47a1004339355af6aef179806ed6c8b0af22e483fd48c0e032323b8fab64
ripemd-160	a93a6a3307870be6f955ecd161c8191790cbc97c

28931389 as geometric shapes

Circle

Radius = n

Diameter	57862778
Circumference	181781278.2811
Area	2.6295924374338E+15

Sphere

Radius = n

Volume	1.0143701562514E+23
Surface area	1.0518369749735E+16
Circumference	181781278.2811

Square

Length = n

Perimeter	115725556
Area	837025269469321
Diagonal	40915162.702092

Cube

Length = n

Surface area	5022151616815926
Volume	2.4216303673847E+22
Space diagonal	50110635.681539

Equilateral Triangle

Length = n

Perimeter	86794167
Area	3.6244257348497E+14
Altitude	25055317.84077

Triangular Pyramid

Length = n

Surface area	3.6244257348497E+14
Volume	2.853918757175E+21
Height	13638387.567364