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

21031389 (number)

21031389 is an odd 8-digits composite number following 21031388 and preceding 21031390. In scientific notation, it is written as 2.1031389 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 14020920 positive integers (up to 21031389) that are relatively prime to 21031389.

Interesting facts

21031389 has 4 divisors, whose sum is 23368220
The reverse of 21031389 is 98313012
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	2.1031389 × 10^7
Engineering notation	2.1031389 × 10^6

Prime Factorization of 21031389

Prime Factorization 9 × 2336821

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21031389	Product of the distinct prime numbers

The prime factorization of 21031389 is 9 × 2336821. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 72, 64, 316, 31, 6169, 4368, 56889, 6136, 995413, 521717, 1036935, 5105136, 86171242, 72701750, 733007424, 206207792, 6700469145, 7091855398

Basic calculations (n = 21031389)

Multiplication

n×y

n×2	42062778
n×3	63094167
n×4	84125556
n×5	105156945

Division

n÷y

n÷2	10515694.5
n÷3	7010463
n÷3	5257847.25
n÷5	4206277.8

Exponentiation

n^y

n²	442319323269321
n³	9.3025897498938E+21
n⁴	1.9564638373743E+29
n⁵	4.1147152028252E+36

Nth Root

^y√n

²√n	4585.9992368076
³√n	276.02980931972
⁴√n	67.720006178437
⁵√n	29.14563966115

Divisors of 21031389

1, 9, 2336821, 21031389

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	-21031388	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 21031389 can be divided by 4 positive divisors. The sum of these divisors (counting 21031389) is 1, the average is 0.25.

Base conversion 21031389

Base	System	Value
2	Binary	1010000001110100111011101
3	Ternary	1110120111122100
4	Quaternary	1100032213131
5	Quinary	20341001024
6	Senary	2030435313
8	Octal	120164735
10	Decimal	21031389
12	Duodecimal	7062b39
16	Hexadecimal	140e9dd
20	Vigesimal	6b8i99
36	Base36	cirx9

Cryptographic Hash Functions

md5	70956a0136281e1dcbbdbcbb8cb52d0b
sha1	1cca0961619670ca8627eed1c347f75aa5596cca
sha256	32a63abed171cc3aed92628cc8aeef80603e803331e5dc14fa0918e25b87bb27
sha512	4f3de1c3d17f9bc3e16419a22a9a3c2b68206d3c483cd4f64ce3784a26ae0d753152e9f8ded7ca6cef9f59aa9c3fdb657d437ae2973a35460fda75b94c97408d
ripemd-160	a464a630df344555f945e67cac2d58041229237d

21031389 as geometric shapes

Circle

Radius = n

Diameter	42062778
Circumference	132144114.35438
Area	1.3895871365237E+15

Sphere

Radius = n

Volume	3.8966596823502E+22
Surface area	5.5583485460948E+15
Circumference	132144114.35438

Square

Length = n

Perimeter	84125556
Area	442319323269321
Diagonal	29742875.559344

Cube

Length = n

Surface area	2653915939615926
Volume	9.3025897498938E+21
Space diagonal	36427434.301745

Equilateral Triangle

Length = n

Perimeter	63094167
Area	1.9152988526799E+14
Altitude	18213717.150873

Triangular Pyramid

Length = n

Surface area	1.9152988526799E+14
Volume	1.0963207157911E+21
Height	9914291.8531148