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

21000918 (number)

21000918 is an even 8-digits composite number following 21000917 and preceding 21000919. In scientific notation, it is written as 2.1000918 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 6958056 positive integers (up to 21000918) that are relatively prime to 21000918.

Interesting facts

21000918 has 16 divisors, whose sum is 42255360
The reverse of 21000918 is 81900012
Previous prime number is 167

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million nine hundred eighteen

Notation

Scientific notation	2.1000918 × 10^7
Engineering notation	2.1000918 × 10^6

Prime Factorization of 21000918

Prime Factorization 2 × 3 × 167 × 20959

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21000918	Product of the distinct prime numbers

The prime factorization of 21000918 is 2 × 3 × 167 × 20959. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 44, 20, 753, 601, 5143, 7192, 89057, 12209, 395985, 58822, 1470009, 1395435, 42523559, 28283717, 918336401, 568162205, 4882880506, 4637953984

Basic calculations (n = 21000918)

Multiplication

n×y

n×2	42001836
n×3	63002754
n×4	84003672
n×5	105004590

Division

n÷y

n÷2	10500459
n÷3	7000306
n÷3	5250229.5
n÷5	4200183.6

Exponentiation

n^y

n²	441038556842724
n³	9.2622145670924E+21
n⁴	1.9451500862191E+29
n⁵	4.0849937458381E+36

Nth Root

^y√n

²√n	4582.6758558729
³√n	275.89643772619
⁴√n	67.695464071626
⁵√n	29.137189321364

Divisors of 21000918

1, 2, 3, 6, 167, 334, 501, 1002, 20959, 41918, 62877, 125754, 3500153, 7000306, 10500459, 21000918

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000917	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000918 can be divided by 16 positive divisors. The sum of these divisors (counting 21000918) is 1, the average is 0.0625.

Base conversion 21000918

Base	System	Value
2	Binary	1010000000111001011010110
3	Ternary	1110111221211210
4	Quaternary	1100013023112
5	Quinary	20334012133
6	Senary	2030042250
8	Octal	120071326
10	Decimal	21000918
12	Duodecimal	7049386
16	Hexadecimal	14072d6
20	Vigesimal	6b525i
36	Base36	ci4eu

Cryptographic Hash Functions

md5	b36f2774186faba6e77e5184aee88605
sha1	8f2f661d9408323a0d253c913409640dcef0467c
sha256	376ea4ee3d0d7c96b2d5ae278f9922264328d7221e3b5dafc072dbf9f0eb02ac
sha512	dc05ada9751a80d3b3796af84acb0d19ae8f47ba2648adc9e9b8caf3f7d6792b1d127a8c3e5b2e353321e0803f3690a1b03f6a5b6665622974a327ec77c10a54
ripemd-160	afa66f9eb71b29dd55417338e116c36bf8e15cd5

21000918 as geometric shapes

Circle

Radius = n

Diameter	42001836
Circumference	131952659.41488
Area	1.3855634901269E+15

Sphere

Radius = n

Volume	3.8797473653266E+22
Surface area	5.5422539605078E+15
Circumference	131952659.41488

Square

Length = n

Perimeter	84003672
Area	441038556842724
Diagonal	29699783.057885

Cube

Length = n

Surface area	2646231341056344
Volume	9.2622145670924E+21
Space diagonal	36374656.981588

Equilateral Triangle

Length = n

Perimeter	63002754
Area	1.9097529713711E+14
Altitude	18187328.490794

Triangular Pyramid

Length = n

Surface area	1.9097529713711E+14
Volume	1.091562454866E+21
Height	9899927.6859618