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

20157721 (number)

20157721 is an odd 8-digits composite number following 20157720 and preceding 20157722. In scientific notation, it is written as 2.0157721 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20033892 positive integers (up to 20157721) that are relatively prime to 20157721.

Interesting facts

20157721 has 4 divisors, whose sum is 20281552
The reverse of 20157721 is 12775102
Previous prime number is 163

Basic properties

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

Name

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

Notation

Scientific notation	2.0157721 × 10^7
Engineering notation	2.0157721 × 10^6

Prime Factorization of 20157721

Prime Factorization 163 × 123667

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20157721	Product of the distinct prime numbers

The prime factorization of 20157721 is 163 × 123667. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 5, 97, 100, 190, 820, 7718, 4587, 70674, 39857, 900089, 666575, 895354, 9257647, 21326227, 97480024, 715517738, 986076220, 4076637054, 8692374920

Basic calculations (n = 20157721)

Multiplication

n×y

n×2	40315442
n×3	60473163
n×4	80630884
n×5	100788605

Division

n÷y

n÷2	10078860.5
n÷3	6719240.3333333
n÷3	5039430.25
n÷5	4031544.2

Exponentiation

n^y

n²	406333715913841
n³	8.1907616782845E+21
n⁴	1.6510708868835E+29
n⁵	3.328182628902E+36

Nth Root

^y√n

²√n	4489.735070135
³√n	272.15342861281
⁴√n	67.005485373475
⁵√n	28.899364054119

Divisors of 20157721

1, 163, 123667, 20157721

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	-20157720	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 20157721 can be divided by 4 positive divisors. The sum of these divisors (counting 20157721) is 1, the average is 0.25.

Base conversion 20157721

Base	System	Value
2	Binary	1001100111001010100011001
3	Ternary	1101221010012021
4	Quaternary	1030321110121
5	Quinary	20130021341
6	Senary	2000014441
8	Octal	114712431
10	Decimal	20157721
12	Duodecimal	6901421
16	Hexadecimal	1339519
20	Vigesimal	65je61
36	Base36	c01sp

Cryptographic Hash Functions

md5	e322f52d6e34f3d805fdf013fa87c54b
sha1	af56cec2b8e7805a2fe255e287ba0c2a3735e50b
sha256	19061460c46d6ab782bf41e99029d79e072b287da34a107ee65be0e09beaf615
sha512	106a4c11f9cab8215c9c0d0653fb7fdbc1ab47d087ad49168727b30d34943fc10b480107a19a6d4e42ba375b80b0733bcc802f4b947d63be3374b9837b1e9588
ripemd-160	41c34c4464d5b27d3e98bad9cfd96f9ec1d758c1

20157721 as geometric shapes

Circle

Radius = n

Diameter	40315442
Circumference	126654696.41343
Area	1.2765350168208E+15

Sphere

Radius = n

Volume	3.4309382287738E+22
Surface area	5.1061400672831E+15
Circumference	126654696.41343

Square

Length = n

Perimeter	80630884
Area	406333715913841
Diagonal	28507322.424733

Cube

Length = n

Surface area	2438002295483046
Volume	8.1907616782845E+21
Space diagonal	34914196.936798

Equilateral Triangle

Length = n

Perimeter	60473163
Area	1.7594766019776E+14
Altitude	17457098.468399

Triangular Pyramid

Length = n

Surface area	1.7594766019776E+14
Volume	9.6529052096631E+20
Height	9502440.8082443