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

21490721 (number)

21490721 is an odd 8-digits composite number following 21490720 and preceding 21490722. In scientific notation, it is written as 2.1490721 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 18398160 positive integers (up to 21490721) that are relatively prime to 21490721.

Interesting facts

21490721 has 8 divisors, whose sum is 24590784
The reverse of 21490721 is 12709412
Previous prime number is 1213

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-one million four hundred ninety thousand seven hundred twenty-one

Notation

Scientific notation	2.1490721 × 10^7
Engineering notation	2.1490721 × 10^6

Prime Factorization of 21490721

Prime Factorization 7 × 1213 × 2531

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21490721	Product of the distinct prime numbers

The prime factorization of 21490721 is 7 × 1213 × 2531. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 90, 75, 15, 914, 4414, 7461, 47334, 68328, 174701, 716800, 5094839, 7227344, 66365944, 76989415, 998671629, 164595717, 6189182725, 3344498864

Basic calculations (n = 21490721)

Multiplication

n×y

n×2	42981442
n×3	64472163
n×4	85962884
n×5	107453605

Division

n÷y

n÷2	10745360.5
n÷3	7163573.6666667
n÷3	5372680.25
n÷5	4298144.2

Exponentiation

n^y

n²	461851089099841
n³	9.9255128993908E+21
n⁴	2.1330642850271E+29
n⁵	4.5841089424582E+36

Nth Root

^y√n

²√n	4635.808559464
³√n	278.02488002573
⁴√n	68.086772279673
⁵√n	29.271851766733

Divisors of 21490721

1, 7, 1213, 2531, 8491, 17717, 3070103, 21490721

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21490720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490721 can be divided by 8 positive divisors. The sum of these divisors (counting 21490721) is 1, the average is 0.125.

Base conversion 21490721

Base	System	Value
2	Binary	1010001111110110000100001
3	Ternary	1111102211201122
4	Quaternary	1101332300201
5	Quinary	21000200341
6	Senary	2044342025
8	Octal	121766041
10	Decimal	21490721
12	Duodecimal	7244915
16	Hexadecimal	147ec21
20	Vigesimal	6e66g1
36	Base36	csmch

Cryptographic Hash Functions

md5	bd5bb7c0a06c9ff64d6662047b00b21a
sha1	a3e7d938e26c134a6c23168c653eaa2fc98f8d8f
sha256	9d148a14cc9dc8c033fd1268b188377728a877cd1cbbbe076f78cc4de6df77c3
sha512	cda17c32c2196f3860a64ac025856e6463a09a49dec5f6732cb8adfe899f30e94c7e44465ea4cc49cc0412cec1d0ff615e27b3fd2d0c007c059262397835534d
ripemd-160	f381f476000fd45ce615c291328b4197ab5bf587

21490721 as geometric shapes

Circle

Radius = n

Diameter	42981442
Circumference	135030182.4279
Area	1.4509479885685E+15

Sphere

Radius = n

Volume	4.1575891210449E+22
Surface area	5.803791954274E+15
Circumference	135030182.4279

Square

Length = n

Perimeter	85962884
Area	461851089099841
Diagonal	30392469.103376

Cube

Length = n

Surface area	2771106534599046
Volume	9.9255128993908E+21
Space diagonal	37223020.663287

Equilateral Triangle

Length = n

Perimeter	64472163
Area	1.9998738796299E+14
Altitude	18611510.331644

Triangular Pyramid

Length = n

Surface area	1.9998738796299E+14
Volume	1.1697329129856E+21
Height	10130823.034459