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

20797981 (number)

20797981 is an odd 8-digits prime number following 20797980 and preceding 20797982. In scientific notation, it is written as 2.0797981 × 10^7. The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors. There are 20797980 positive integers (up to 20797981) that are relatively prime to 20797981.

Interesting facts

20797981 has 2 divisors, whose sum is 20797982
The reverse of 20797981 is 18979702
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty million seven hundred ninety-seven thousand nine hundred eighty-one

Notation

Scientific notation	2.0797981 × 10^7
Engineering notation	2.0797981 × 10^6

Prime Factorization of 20797981

Prime Factorization 20797981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20797981	Product of the distinct prime numbers

The prime factorization of 20797981 is 20797981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 2, 16, 21, 365, 787, 3584, 1980, 71433, 14894, 313007, 58575, 3668320, 9268729, 57770499, 55823424, 151569805, 435012501, 471849307, 3946990327

Basic calculations (n = 20797981)

Multiplication

n×y

n×2	41595962
n×3	62393943
n×4	83191924
n×5	103989905

Division

n÷y

n÷2	10398990.5
n÷3	6932660.3333333
n÷3	5199495.25
n÷5	4159596.2

Exponentiation

n^y

n²	432556013676361
n³	8.9962917538767E+21
n⁴	1.8710470496758E+29
n⁵	3.8914000989264E+36

Nth Root

^y√n

²√n	4560.4803475073
³√n	275.00487484471
⁴√n	67.531328637213
⁵√n	29.080658432894

Divisors of 20797981

1, 20797981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20797982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10398991	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4560.4804571448	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999038368	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20797981 can be divided by 2 positive divisors. The sum of these divisors (counting 20797981) is 20797982, the average is 10398991.

Base conversion 20797981

Base	System	Value
2	Binary	1001111010101101000011101
3	Ternary	1110010122110121
4	Quaternary	1033111220131
5	Quinary	20311013411
6	Senary	2021434541
8	Octal	117255035
10	Decimal	20797981
12	Duodecimal	6b6ba51
16	Hexadecimal	13d5a1d
20	Vigesimal	69jej1
36	Base36	cdrtp

Cryptographic Hash Functions

md5	078c83b373f4c8829d71765920d23647
sha1	b37a7cbdee8fa3b9b2e51b29af8d88594f8801c0
sha256	bb193e8d35ddf3bf14ccfe53e366e94ba193c094d44afc0fdc7d1270a4a81742
sha512	e4d2c439a8497f9eac7f2dc967f40916196e32852123f631e27691ef2e4cb9fc9440f5795264d3cc620bbdfad44834a3a344a999500b1e529d94d962738708a5
ripemd-160	451aa366d1e945d3349067ef4693a6d808949164

20797981 as geometric shapes

Circle

Radius = n

Diameter	41595962
Circumference	130677568.6382
Area	1.3589147948317E+15

Sphere

Radius = n

Volume	3.7683578778039E+22
Surface area	5.435659179327E+15
Circumference	130677568.6382

Square

Length = n

Perimeter	83191924
Area	432556013676361
Diagonal	29412786.800178

Cube

Length = n

Surface area	2595336082058166
Volume	8.9962917538767E+21
Space diagonal	36023159.786852

Equilateral Triangle

Length = n

Perimeter	62393943
Area	1.8730224820173E+14
Altitude	18011579.893426

Triangular Pyramid

Length = n

Surface area	1.8730224820173E+14
Volume	1.0602231507831E+21
Height	9804262.266726