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

21002561 (number)

21002561 is an odd 8-digits composite number following 21002560 and preceding 21002562. In scientific notation, it is written as 2.1002561 × 10^7. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 20555652 positive integers (up to 21002561) that are relatively prime to 21002561.

Interesting facts

21002561 has 4 divisors, whose sum is 21449472
The reverse of 21002561 is 16520012
Previous prime number is 47

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

Name	twenty-one million two thousand five hundred sixty-one

Notation

Scientific notation	2.1002561 × 10^7
Engineering notation	2.1002561 × 10^6

Prime Factorization of 21002561

Prime Factorization 47 × 446863

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21002561	Product of the distinct prime numbers

The prime factorization of 21002561 is 47 × 446863. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 8, 84, 80, 857, 483, 6126, 5463, 96243, 46384, 443164, 669716, 5457055, 9386431, 20218863, 74821946, 789077829, 236300671, 8772145036, 7322897583

Basic calculations (n = 21002561)

Multiplication

n×y

n×2	42005122
n×3	63007683
n×4	84010244
n×5	105012805

Division

n÷y

n÷2	10501280.5
n÷3	7000853.6666667
n÷3	5250640.25
n÷5	4200512.2

Exponentiation

n^y

n²	441107568558721
n³	9.2643886162162E+21
n⁴	1.9457588703979E+29
n⁵	4.0865919366822E+36

Nth Root

^y√n

²√n	4582.8551144456
³√n	275.90363242797
⁴√n	67.696788065946
⁵√n	29.137645214807

Divisors of 21002561

1, 47, 446863, 21002561

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	-21002560	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 21002561 can be divided by 4 positive divisors. The sum of these divisors (counting 21002561) is 1, the average is 0.25.

Base conversion 21002561

Base	System	Value
2	Binary	1010000000111100101000001
3	Ternary	1110112001002122
4	Quaternary	1100013211001
5	Quinary	20334040221
6	Senary	2030054025
8	Octal	120074501
10	Decimal	21002561
12	Duodecimal	704a315
16	Hexadecimal	1407941
20	Vigesimal	6b5681
36	Base36	ci5oh

Cryptographic Hash Functions

md5	7051f988cb86d4175e22d62a688a2403
sha1	71b63706db7f73c90f5a541682e40a2f5276837c
sha256	132ca8f7c7dc1b5fe4461dfa093533222b16e008eccc992238d5331f0242808c
sha512	dfff56b7e3cc53642977e1f50c95c0f7b43f26e37c3d6f0e30475866100ff531e2c7db4c2f3e01e177c13da05f0fbbf610326b0483801f1d4486fd47462e47fa
ripemd-160	32ddde340d3f0214b3b7d9763471ccc5fc7b9d30

21002561 as geometric shapes

Circle

Radius = n

Diameter	42005122
Circumference	131962982.68834
Area	1.3857802968269E+15

Sphere

Radius = n

Volume	3.8806580288941E+22
Surface area	5.5431211873077E+15
Circumference	131962982.68834

Square

Length = n

Perimeter	84010244
Area	441107568558721
Diagonal	29702106.610768

Cube

Length = n

Surface area	2646645411352326
Volume	9.2643886162162E+21
Space diagonal	36377502.741065

Equilateral Triangle

Length = n

Perimeter	63007683
Area	1.9100518008672E+14
Altitude	18188751.370532

Triangular Pyramid

Length = n

Surface area	1.9100518008672E+14
Volume	1.0918186690123E+21
Height	9900702.2035894