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

20397989 (number)

20397989 is an odd 8-digits composite number following 20397988 and preceding 20397990. In scientific notation, it is written as 2.0397989 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 19846656 positive integers (up to 20397989) that are relatively prime to 20397989.

Interesting facts

20397989 has 4 divisors, whose sum is 20949324
The reverse of 20397989 is 98979302
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

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

Notation

Scientific notation	2.0397989 × 10^7
Engineering notation	2.0397989 × 10^6

Prime Factorization of 20397989

Prime Factorization 37 × 551297

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20397989	Product of the distinct prime numbers

The prime factorization of 20397989 is 37 × 551297. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 12, 46, 569, 78, 1241, 5942, 45742, 25170, 360771, 63628, 4784684, 4960953, 6431795, 66334810, 689669374, 521457392, 1085050358, 7771205765

Basic calculations (n = 20397989)

Multiplication

n×y

n×2	40795978
n×3	61193967
n×4	81591956
n×5	101989945

Division

n÷y

n÷2	10198994.5
n÷3	6799329.6666667
n÷3	5099497.25
n÷5	4079597.8

Exponentiation

n^y

n²	416077955244121
n³	8.4871535542121E+21
n⁴	1.7312086484013E+29
n⁵	3.5313174966794E+36

Nth Root

^y√n

²√n	4516.4132893259
³√n	273.23046280922
⁴√n	67.20426541021
⁵√n	28.9679305534

Divisors of 20397989

1, 37, 551297, 20397989

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	-20397988	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 20397989 can be divided by 4 positive divisors. The sum of these divisors (counting 20397989) is 1, the average is 0.25.

Base conversion 20397989

Base	System	Value
2	Binary	1001101110011111110100101
3	Ternary	1102101022210002
4	Quaternary	1031303332211
5	Quinary	20210213424
6	Senary	2005111045
8	Octal	115637645
10	Decimal	20397989
12	Duodecimal	69b8485
16	Hexadecimal	1373fa5
20	Vigesimal	679ej9
36	Base36	c576t

Cryptographic Hash Functions

md5	390a642dc084dcf2258a71e20653d33f
sha1	fe97f699993a49fe2fa29679d35c5392a54dfaa5
sha256	b9d520334325a78e50abbd76724bdb9fb20febbdc110ca626db3f0e0d3a34fa7
sha512	cc44402a1470a08da94b6cb6802dba5b92ba941bb849bf8a3a0ee00a0932be70e41995cfe4f2ead1bdbbc9f2926685b40907973c1d638f0806c8fe289c6eddfd
ripemd-160	59d967b3f633563a08f3f66aa6c1a779e7d11206

20397989 as geometric shapes

Circle

Radius = n

Diameter	40795978
Circumference	128164344.78081
Area	1.3071474475156E+15

Sphere

Radius = n

Volume	3.5550905674402E+22
Surface area	5.2285897900624E+15
Circumference	128164344.78081

Square

Length = n

Perimeter	81591956
Area	416077955244121
Diagonal	28847112.688937

Cube

Length = n

Surface area	2496467731464726
Volume	8.4871535542121E+21
Space diagonal	35330353.320231

Equilateral Triangle

Length = n

Perimeter	61193967
Area	1.8016703959805E+14
Altitude	17665176.660116

Triangular Pyramid

Length = n

Surface area	1.8016703959805E+14
Volume	1.0002206385258E+21
Height	9615704.2296457