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

20681521 (number)

20681521 is an odd 8-digits composite number following 20681520 and preceding 20681522. In scientific notation, it is written as 2.0681521 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 17727012 positive integers (up to 20681521) that are relatively prime to 20681521.

Interesting facts

20681521 has 4 divisors, whose sum is 23636032
The reverse of 20681521 is 12518602
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty million six hundred eighty-one thousand five hundred twenty-one

Notation

Scientific notation	2.0681521 × 10^7
Engineering notation	2.0681521 × 10^6

Prime Factorization of 20681521

Prime Factorization 7 × 2954503

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20681521	Product of the distinct prime numbers

The prime factorization of 20681521 is 7 × 2954503. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 90, 79, 385, 33, 3277, 1122, 92930, 21131, 919461, 68296, 2839497, 7046891, 70938566, 73334646, 278611161, 997997850, 7958833773, 6643596502

Basic calculations (n = 20681521)

Multiplication

n×y

n×2	41363042
n×3	62044563
n×4	82726084
n×5	103407605

Division

n÷y

n÷2	10340760.5
n÷3	6893840.3333333
n÷3	5170380.25
n÷5	4136304.2

Exponentiation

n^y

n²	427725310873441
n³	8.8460099990606E+21
n⁴	1.8294894156178E+29
n⁵	3.7836623768378E+36

Nth Root

^y√n

²√n	4547.6940310447
³√n	274.49060964136
⁴√n	67.43659267078
⁵√n	29.048017333892

Divisors of 20681521

1, 7, 2954503, 20681521

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	-20681520	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 20681521 can be divided by 4 positive divisors. The sum of these divisors (counting 20681521) is 1, the average is 0.25.

Base conversion 20681521

Base	System	Value
2	Binary	1001110111001001100110001
3	Ternary	1102220201201021
4	Quaternary	1032321030301
5	Quinary	20243302041
6	Senary	2015135441
8	Octal	116711461
10	Decimal	20681521
12	Duodecimal	6b14581
16	Hexadecimal	13b9331
20	Vigesimal	6953g1
36	Base36	cb9yp

Cryptographic Hash Functions

md5	e90172fb0a7453210d2b95bcd53fdf45
sha1	2e38cb54cc1edfe438bf788fddbe7219e3f44219
sha256	cd423031e85bd03c380f165b6ca24a6eb07fa5b1bb0d1d024e3bc8c600ad927a
sha512	b2bb8bfe86a55b9c4a6af7a8a352cf1bde2aa8eb460d8b2ab46aa883e5ebbb4925cf2076316a95a19cd587ebe4a11e4c72df9f2809bf6bd624b62033a4db7581
ripemd-160	9aee0c6c1bb6c8a7efef32643efa20f240127af0

20681521 as geometric shapes

Circle

Radius = n

Diameter	41363042
Circumference	129945828.87733
Area	1.3437386943944E+15

Sphere

Radius = n

Volume	3.7054080035508E+22
Surface area	5.3749547775777E+15
Circumference	129945828.87733

Square

Length = n

Perimeter	82726084
Area	427725310873441
Diagonal	29248087.488704

Cube

Length = n

Surface area	2566351865240646
Volume	8.8460099990606E+21
Space diagonal	35821445.149803

Equilateral Triangle

Length = n

Perimeter	62044563
Area	1.85210492529E+14
Altitude	17910722.574901

Triangular Pyramid

Length = n

Surface area	1.85210492529E+14
Volume	1.04251227613E+21
Height	9749362.4962347