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

20887989 (number)

20887989 is an odd 8-digits composite number following 20887988 and preceding 20887990. In scientific notation, it is written as 2.0887989 × 10^7. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 13662480 positive integers (up to 20887989) that are relatively prime to 20887989.

Interesting facts

20887989 has 8 divisors, whose sum is 28376352
The reverse of 20887989 is 98978802
Previous prime number is 53

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6

Name

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

Notation

Scientific notation	2.0887989 × 10^7
Engineering notation	2.0887989 × 10^6

Prime Factorization of 20887989

Prime Factorization 3 × 53 × 131371

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20887989	Product of the distinct prime numbers

The prime factorization of 20887989 is 3 × 53 × 131371. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 15, 29, 286, 745, 2179, 7877, 96893, 41407, 291071, 671225, 7601809, 1438836, 62545388, 57480469, 447337508, 140576108, 515912928, 9679965792

Basic calculations (n = 20887989)

Multiplication

n×y

n×2	41775978
n×3	62663967
n×4	83551956
n×5	104439945

Division

n÷y

n÷2	10443994.5
n÷3	6962663
n÷3	5221997.25
n÷5	4177597.8

Exponentiation

n^y

n²	436308084464121
n³	9.1135984688976E+21
n⁴	1.9036474456875E+29
n⁵	3.9763366905399E+36

Nth Root

^y√n

²√n	4570.3379524932
³√n	275.40101933616
⁴√n	67.604274661394
⁵√n	29.105785607665

Divisors of 20887989

1, 3, 53, 159, 131371, 394113, 6962663, 20887989

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	-20887988	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 20887989 can be divided by 8 positive divisors. The sum of these divisors (counting 20887989) is 1, the average is 0.125.

Base conversion 20887989

Base	System	Value
2	Binary	1001111101011100110110101
3	Ternary	1110022012221020
4	Quaternary	1033223212311
5	Quinary	20321403424
6	Senary	2023411353
8	Octal	117534665
10	Decimal	20887989
12	Duodecimal	6bb3b59
16	Hexadecimal	13eb9b5
20	Vigesimal	6aajj9
36	Base36	cfp9x

Cryptographic Hash Functions

md5	9d172b0e05650a2f44160a6b4bb49004
sha1	4dbf4188578f4d0b5f7c824abcd2c6d86d2cf502
sha256	7d893d3471acc414fbadbca2a6420c0c788818d52e65c28691b5840bac208c2f
sha512	27b8c7dc01d65e0f31fbb0c38a6a9806792ba3766b933c7da5cc8646920116304c21b71bac9c7331ec4c125db562de5589c5fa8636bf22da22143e65f031ea87
ripemd-160	604945cbdd21399ec2c1135368729928675798a8

20887989 as geometric shapes

Circle

Radius = n

Diameter	41775978
Circumference	131243105.58133
Area	1.3707022728543E+15

Sphere

Radius = n

Volume	3.8174951996875E+22
Surface area	5.4828090914173E+15
Circumference	131243105.58133

Square

Length = n

Perimeter	83551956
Area	436308084464121
Diagonal	29540077.3345

Cube

Length = n

Surface area	2617848506784726
Volume	9.1135984688976E+21
Space diagonal	36179058.21594

Equilateral Triangle

Length = n

Perimeter	62663967
Area	1.8892694251123E+14
Altitude	18089529.10797

Triangular Pyramid

Length = n

Surface area	1.8892694251123E+14
Volume	1.0740478797281E+21
Height	9846692.4448333