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

20897989 (number)

20897989 is an odd 8-digits composite number following 20897988 and preceding 20897990. In scientific notation, it is written as 2.0897989 × 10^7. The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors. There are 17696256 positive integers (up to 20897989) that are relatively prime to 20897989.

Interesting facts

20897989 has 8 divisors, whose sum is 24171840
The reverse of 20897989 is 98979802
Previous prime number is 83

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7

Name

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

Notation

Scientific notation	2.0897989 × 10^7
Engineering notation	2.0897989 × 10^6

Prime Factorization of 20897989

Prime Factorization 7 × 83 × 35969

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20897989	Product of the distinct prime numbers

The prime factorization of 20897989 is 7 × 83 × 35969. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 8, 30, 48, 481, 127, 9093, 268, 64342, 98063, 798421, 168668, 2556667, 498227, 54294161, 46986473, 808393160, 23244223, 8523512063, 4313095427

Basic calculations (n = 20897989)

Multiplication

n×y

n×2	41795978
n×3	62693967
n×4	83591956
n×5	104489945

Division

n÷y

n÷2	10448994.5
n÷3	6965996.3333333
n÷3	5224497.25
n÷5	4179597.8

Exponentiation

n^y

n²	436725944244121
n³	9.1266939788283E+21
n⁴	1.9072955037592E+29
n⁵	3.9858640457309E+36

Nth Root

^y√n

²√n	4571.4318325881
³√n	275.44496118908
⁴√n	67.612364494877
⁵√n	29.108571918355

Divisors of 20897989

1, 7, 83, 581, 35969, 251783, 2985427, 20897989

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	-20897988	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 20897989 can be divided by 8 positive divisors. The sum of these divisors (counting 20897989) is 1, the average is 0.125.

Base conversion 20897989

Base	System	Value
2	Binary	1001111101110000011000101
3	Ternary	1110022201122121
4	Quaternary	1033232003011
5	Quinary	20322213424
6	Senary	2023525541
8	Octal	117560305
10	Decimal	20897989
12	Duodecimal	6bb98b1
16	Hexadecimal	13ee0c5
20	Vigesimal	6ac4j9
36	Base36	cfwzp

Cryptographic Hash Functions

md5	4e7357d2601e2b7c6029c69e1bc96cff
sha1	25c982ee252cf516434c35169edc98ee20e78135
sha256	19498966f8d87189991b266c46c3e1c9c10df936d3d45417532fe51c466ce326
sha512	0a6e2df892904a1cf9ecef45565c5a5d16dbdad8e70dc41eb23f74976ae25a4a4523d9c5df0aa46df6f41dafa6bf69baca79b135be706856c8f5cc7bd23393e2
ripemd-160	78852411b1757e9b41157cacf06d3d7f30bad83d

20897989 as geometric shapes

Circle

Radius = n

Diameter	41795978
Circumference	131305937.4344
Area	1.3720150180694E+15

Sphere

Radius = n

Volume	3.8229806340599E+22
Surface area	5.4880600722776E+15
Circumference	131305937.4344

Square

Length = n

Perimeter	83591956
Area	436725944244121
Diagonal	29554219.470124

Cube

Length = n

Surface area	2620355665464726
Volume	9.1266939788283E+21
Space diagonal	36196378.724016

Equilateral Triangle

Length = n

Perimeter	62693967
Area	1.8910788110358E+14
Altitude	18098189.362008

Triangular Pyramid

Length = n

Surface area	1.8910788110358E+14
Volume	1.075591200374E+21
Height	9851406.4900413