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

20521645 (number)

20521645 is an odd 8-digits composite number following 20521644 and preceding 20521646. In scientific notation, it is written as 2.0521645 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 16376640 positive integers (up to 20521645) that are relatively prime to 20521645.

Interesting facts

20521645 has 8 divisors, whose sum is 24687000
The reverse of 20521645 is 54612502
Previous prime number is 421

Basic properties

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

Name

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

Notation

Scientific notation	2.0521645 × 10^7
Engineering notation	2.0521645 × 10^6

Prime Factorization of 20521645

Prime Factorization 5 × 421 × 9749

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20521645	Product of the distinct prime numbers

The prime factorization of 20521645 is 5 × 421 × 9749. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 4, 89, 52, 304, 985, 3866, 3272, 51714, 24765, 492471, 457767, 4211238, 1855554, 33709928, 17328102, 958381537, 434128063, 3314720244, 5568770921

Basic calculations (n = 20521645)

Multiplication

n×y

n×2	41043290
n×3	61564935
n×4	82086580
n×5	102608225

Division

n÷y

n÷2	10260822.5
n÷3	6840548.3333333
n÷3	5130411.25
n÷5	4104329

Exponentiation

n^y

n²	421137913506025
n³	8.6424427570114E+21
n⁴	1.7735714219221E+29
n⁵	3.639660310283E+36

Nth Root

^y√n

²√n	4530.0822288343
³√n	273.78147369268
⁴√n	67.305885543794
⁵√n	29.002967378523

Divisors of 20521645

1, 5, 421, 2105, 9749, 48745, 4104329, 20521645

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	-20521644	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 20521645 can be divided by 8 positive divisors. The sum of these divisors (counting 20521645) is 1, the average is 0.125.

Base conversion 20521645

Base	System	Value
2	Binary	1001110010010001010101101
3	Ternary	1102121121101221
4	Quaternary	1032102022231
5	Quinary	20223143040
6	Senary	2011503341
8	Octal	116221255
10	Decimal	20521645
12	Duodecimal	6a57b51
16	Hexadecimal	13922ad
20	Vigesimal	685425
36	Base36	c7ulp

Cryptographic Hash Functions

md5	a06e06ef4f9c16bed29ea911549974e8
sha1	165bbc7bc5e7dcefdaf7ef0ec42ed10c07c47cce
sha256	56b56238cad242817e5ea983494e967912391d7a5a0bd4d66054914121edc121
sha512	22a5ab68610715bbb75b157b51c01ee7bf54cb5bd3e5da59b630c19dd4838e59713e9d401a534a77851023e2993adffb3e95d362516953fa6e43b849e2d2a465
ripemd-160	dd898937383fb332145c875fefee9581e2b57e0b

20521645 as geometric shapes

Circle

Radius = n

Diameter	41043290
Circumference	128941298.34316
Area	1.3230437752187E+15

Sphere

Radius = n

Volume	3.6201379565996E+22
Surface area	5.2921751008746E+15
Circumference	128941298.34316

Square

Length = n

Perimeter	82086580
Area	421137913506025
Diagonal	29021988.681206

Cube

Length = n

Surface area	2526827481036150
Volume	8.6424427570114E+21
Space diagonal	35544531.794892

Equilateral Triangle

Length = n

Perimeter	61564935
Area	1.823580657965E+14
Altitude	17772265.897446

Triangular Pyramid

Length = n

Surface area	1.823580657965E+14
Volume	1.0185216465832E+21
Height	9673996.2270687