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

20686721 (number)

20686721 is an odd 8-digits composite number following 20686720 and preceding 20686722. In scientific notation, it is written as 2.0686721 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 18405520 positive integers (up to 20686721) that are relatively prime to 20686721.

Interesting facts

20686721 has 8 divisors, whose sum is 23048064
The reverse of 20686721 is 12768602
Previous prime number is 47

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0686721 × 10^7
Engineering notation	2.0686721 × 10^6

Prime Factorization of 20686721

Prime Factorization 11 × 47 × 40013

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20686721	Product of the distinct prime numbers

The prime factorization of 20686721 is 11 × 47 × 40013. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 4, 59, 13, 960, 313, 8128, 794, 66521, 79552, 805413, 154646, 216979, 8642443, 31487534, 13782379, 721701424, 330918707, 7662831309, 1249024613

Basic calculations (n = 20686721)

Multiplication

n×y

n×2	41373442
n×3	62060163
n×4	82746884
n×5	103433605

Division

n÷y

n÷2	10343360.5
n÷3	6895573.6666667
n÷3	5171680.25
n÷5	4137344.2

Exponentiation

n^y

n²	427940425731841
n³	8.8526841917358E+21
n⁴	1.8313300797555E+29
n⁵	3.788421441881E+36

Nth Root

^y√n

²√n	4548.2657134341
³√n	274.51361297139
⁴√n	67.440831203612
⁵√n	29.049477908295

Divisors of 20686721

1, 11, 47, 517, 40013, 440143, 1880611, 20686721

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	-20686720	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 20686721 can be divided by 8 positive divisors. The sum of these divisors (counting 20686721) is 1, the average is 0.125.

Base conversion 20686721

Base	System	Value
2	Binary	1001110111010011110000001
3	Ternary	1102220222211212
4	Quaternary	1032322132001
5	Quinary	20243433341
6	Senary	2015215505
8	Octal	116723601
10	Decimal	20686721
12	Duodecimal	6b17595
16	Hexadecimal	13ba781
20	Vigesimal	695gg1
36	Base36	cbdz5

Cryptographic Hash Functions

md5	f2759f634b86a7f2d08357bda72dd8a1
sha1	4a7f38bfcd58f00227f083644e6c0f11b95e6df6
sha256	3300a11220db7d713997f57d3ef4ac3884c37431a2f38e0334b5e72181b28dfe
sha512	ad4526348e00f158e42083283f0d22a14040784a7dfbd39839893541352a3a04866918c7761b51705b4e6e686a6dc3aacbfb0ff8afaa6418e14f79f6e1d97064
ripemd-160	917ea98ffca87b2d5d14c462294d2b20863873b1

20686721 as geometric shapes

Circle

Radius = n

Diameter	41373442
Circumference	129978501.44092
Area	1.3444144976532E+15

Sphere

Radius = n

Volume	3.708203682841E+22
Surface area	5.377657990613E+15
Circumference	129978501.44092

Square

Length = n

Perimeter	82746884
Area	427940425731841
Diagonal	29255441.399228

Cube

Length = n

Surface area	2567642554391046
Volume	8.8526841917358E+21
Space diagonal	35830451.814002

Equilateral Triangle

Length = n

Perimeter	62060163
Area	1.8530363999505E+14
Altitude	17915225.907001

Triangular Pyramid

Length = n

Surface area	1.8530363999505E+14
Volume	1.0432988372799E+21
Height	9751813.7997428