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

20921665 (number)

20921665 is an odd 8-digits composite number following 20921664 and preceding 20921666. In scientific notation, it is written as 2.0921665 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 16679040 positive integers (up to 20921665) that are relatively prime to 20921665.

Interesting facts

20921665 has 8 divisors, whose sum is 25193448
The reverse of 20921665 is 56612902
Previous prime number is 293

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty million nine hundred twenty-one thousand six hundred sixty-five

Notation

Scientific notation	2.0921665 × 10^7
Engineering notation	2.0921665 × 10^6

Prime Factorization of 20921665

Prime Factorization 5 × 293 × 14281

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20921665	Product of the distinct prime numbers

The prime factorization of 20921665 is 5 × 293 × 14281. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 5, 63, 59, 459, 432, 8839, 2459, 89070, 13738, 693204, 847766, 1561285, 3505953, 43004762, 75415, 10051352, 809367803, 67609875, 2269271307

Basic calculations (n = 20921665)

Multiplication

n×y

n×2	41843330
n×3	62764995
n×4	83686660
n×5	104608325

Division

n÷y

n÷2	10460832.5
n÷3	6973888.3333333
n÷3	5230416.25
n÷5	4184333

Exponentiation

n^y

n²	437716066372225
n³	9.1577489057575E+21
n⁴	1.9159535476037E+29
n⁵	4.0084938278527E+36

Nth Root

^y√n

²√n	4574.0206602069
³√n	275.54894206605
⁴√n	67.63150641681
⁵√n	29.115164537824

Divisors of 20921665

1, 5, 293, 1465, 14281, 71405, 4184333, 20921665

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	-20921664	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 20921665 can be divided by 8 positive divisors. The sum of these divisors (counting 20921665) is 1, the average is 0.125.

Base conversion 20921665

Base	System	Value
2	Binary	1001111110011110101000001
3	Ternary	1110100221010111
4	Quaternary	1033303311001
5	Quinary	20323443130
6	Senary	2024231321
8	Octal	117636501
10	Decimal	20921665
12	Duodecimal	700b541
16	Hexadecimal	13f3d41
20	Vigesimal	6af435
36	Base36	cgf9d

Cryptographic Hash Functions

md5	a543de528559f9993460b3b3db7ebd6b
sha1	aed8153011bfe4f44941f40ab21124e4a7aca1c5
sha256	4f226176e348f33a59e2f1011e8d47f48fb325d011c3d3f6fd1edd3f3eb48b30
sha512	21f24b0912a71cdcf9bcd7614872dd1da087632f15f545318dc0af5025606b0d68e79de14790a8938ba310934412d1919c4f42f5f676e112870a4d601ef63ab3
ripemd-160	edbfbf6167dc0dedd37431e14c2358f3b453eb46

20921665 as geometric shapes

Circle

Radius = n

Diameter	41843330
Circumference	131454698.12973
Area	1.3751255784732E+15

Sphere

Radius = n

Volume	3.835988891433E+22
Surface area	5.5005023138928E+15
Circumference	131454698.12973

Square

Length = n

Perimeter	83686660
Area	437716066372225
Diagonal	29587702.390427

Cube

Length = n

Surface area	2626296398233350
Volume	9.1577489057575E+21
Space diagonal	36237386.758936

Equilateral Triangle

Length = n

Perimeter	62764995
Area	1.8953661656147E+14
Altitude	18118693.379468

Triangular Pyramid

Length = n

Surface area	1.8953661656147E+14
Volume	1.0792510586108E+21
Height	9862567.4634755