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

20997989 (number)

20997989 is an odd 8-digits prime number following 20997988 and preceding 20997990. In scientific notation, it is written as 2.0997989 × 10^7. The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors. There are 20997988 positive integers (up to 20997989) that are relatively prime to 20997989.

Interesting facts

20997989 has 2 divisors, whose sum is 20997990
The reverse of 20997989 is 98979902
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8

Name

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

Notation

Scientific notation	2.0997989 × 10^7
Engineering notation	2.0997989 × 10^6

Prime Factorization of 20997989

Prime Factorization 20997989

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20997989	Product of the distinct prime numbers

The prime factorization of 20997989 is 20997989. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 2, 28, 79, 54, 204, 2692, 4366, 87263, 72810, 393682, 649667, 6456581, 853098, 95915980, 85040065, 881917955, 298928730, 4133758948, 6877406174

Basic calculations (n = 20997989)

Multiplication

n×y

n×2	41995978
n×3	62993967
n×4	83991956
n×5	104989945

Division

n÷y

n÷2	10498994.5
n÷3	6999329.6666667
n÷3	5249497.25
n÷5	4199597.8

Exponentiation

n^y

n²	440915542044121
n³	9.2583397017715E+21
n⁴	1.9440651521606E+29
n⁵	4.0821458680352E+36

Nth Root

^y√n

²√n	4582.356271614
³√n	275.88361069584
⁴√n	67.693103574987
⁵√n	29.136376522714

Divisors of 20997989

1, 20997989

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20997990	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10498995	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4582.3563807282	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999047528	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20997989 can be divided by 2 positive divisors. The sum of these divisors (counting 20997989) is 20997990, the average is 10498995.

Base conversion 20997989

Base	System	Value
2	Binary	1010000000110011101100101
3	Ternary	1110111210211022
4	Quaternary	1100012131211
5	Quinary	20333413424
6	Senary	2030020525
8	Octal	120063545
10	Decimal	20997989
12	Duodecimal	7047745
16	Hexadecimal	1406765
20	Vigesimal	6b4ej9
36	Base36	ci25h

Cryptographic Hash Functions

md5	6f5bb2ece8a3ab98632b8b48a922f927
sha1	d812ed6f4c9f14c890524d5f9ab2f7cd6f285490
sha256	acb0a40eb4fe36e7a25936e25b74e4dceba47b7b23e37dc13345d15e5c9db9e1
sha512	a08d7923aa012ab6eece4f9f782c6504aea1ca0e002acf81b1f0aadf08f5a9846a447fde604b1e260c74959a235e33b42b1813906482df8b08efcdea9b3371e2
ripemd-160	36cfb4f4eec5eb203fe144110d6ab49cb28c4396

20997989 as geometric shapes

Circle

Radius = n

Diameter	41995978
Circumference	131934255.96512
Area	1.3851770277394E+15

Sphere

Radius = n

Volume	3.8781242655365E+22
Surface area	5.5407081109575E+15
Circumference	131934255.96512

Square

Length = n

Perimeter	83991956
Area	440915542044121
Diagonal	29695640.826361

Cube

Length = n

Surface area	2645493252264726
Volume	9.2583397017715E+21
Space diagonal	36369583.804772

Equilateral Triangle

Length = n

Perimeter	62993967
Area	1.909220301668E+14
Altitude	18184791.902386

Triangular Pyramid

Length = n

Surface area	1.909220301668E+14
Volume	1.0911057976085E+21
Height	9898546.9421204