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

20505721 (number)

20505721 is an odd 8-digits composite number following 20505720 and preceding 20505722. In scientific notation, it is written as 2.0505721 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20448244 positive integers (up to 20505721) that are relatively prime to 20505721.

Interesting facts

20505721 has 4 divisors, whose sum is 20563200
The reverse of 20505721 is 12750502
Previous prime number is 359

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty million five hundred five thousand seven hundred twenty-one

Notation

Scientific notation	2.0505721 × 10^7
Engineering notation	2.0505721 × 10^6

Prime Factorization of 20505721

Prime Factorization 359 × 57119

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20505721	Product of the distinct prime numbers

The prime factorization of 20505721 is 359 × 57119. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 9, 42, 70, 693, 92, 8208, 67, 65975, 73500, 7274, 156592, 7693473, 252343, 76103243, 2085076, 899044702, 325195690, 3049381042, 559576554

Basic calculations (n = 20505721)

Multiplication

n×y

n×2	41011442
n×3	61517163
n×4	82022884
n×5	102528605

Division

n÷y

n÷2	10252860.5
n÷3	6835240.3333333
n÷3	5126430.25
n÷5	4101144.2

Exponentiation

n^y

n²	420484593729841
n³	8.6223397638225E+21
n⁴	1.7680729356415E+29
n⁵	3.6255610325915E+36

Nth Root

^y√n

²√n	4528.3243037574
³√n	273.71064076928
⁴√n	67.292825054068
⁵√n	28.998464945426

Divisors of 20505721

1, 359, 57119, 20505721

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	-20505720	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 20505721 can be divided by 4 positive divisors. The sum of these divisors (counting 20505721) is 1, the average is 0.25.

Base conversion 20505721

Base	System	Value
2	Binary	1001110001110010001111001
3	Ternary	1102120210120011
4	Quaternary	1032032101321
5	Quinary	20222140341
6	Senary	2011301521
8	Octal	116162171
10	Decimal	20505721
12	Duodecimal	6a4a8a1
16	Hexadecimal	138e479
20	Vigesimal	683461
36	Base36	c7ibd

Cryptographic Hash Functions

md5	c1fde14507c99da5912ab692c977df1c
sha1	f376ffec894f9a32b33ee8ac59f6a53a8ba371be
sha256	2e0bfac22902ccaa8452a60a0d887f96aa46049438f688219fbe78508ca45001
sha512	aeb4fc7aaab6f137dee8ecb4c20f1a29c92aa7a71b5387e29acde95028dd9d6041e160c55be74043b9ecec52841db52118691c0d01bb15acd9f81f8d18c1de5e
ripemd-160	f5675d0a1510b90a8acf703d61c76efdf781f71b

20505721 as geometric shapes

Circle

Radius = n

Diameter	41011442
Circumference	128841244.90032
Area	1.3209913106094E+15

Sphere

Radius = n

Volume	3.611717234504E+22
Surface area	5.2839652424374E+15
Circumference	128841244.90032

Square

Length = n

Perimeter	82022884
Area	420484593729841
Diagonal	28999468.744439

Cube

Length = n

Surface area	2522907562379046
Volume	8.6223397638225E+21
Space diagonal	35516950.617832

Equilateral Triangle

Length = n

Perimeter	61517163
Area	1.8207517003501E+14
Altitude	17758475.308916

Triangular Pyramid

Length = n

Surface area	1.8207517003501E+14
Volume	1.0161524861155E+21
Height	9666489.5814796