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

20389987 (number)

20389987 is an odd 8-digits composite number following 20389986 and preceding 20389988. In scientific notation, it is written as 2.0389987 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 18188800 positive integers (up to 20389987) that are relatively prime to 20389987.

Interesting facts

20389987 has 16 divisors, whose sum is 22744800
The reverse of 20389987 is 78998302
Previous prime number is 29

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

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

Notation

Scientific notation	2.0389987 × 10^7
Engineering notation	2.0389987 × 10^6

Prime Factorization of 20389987

Prime Factorization 17 × 59 × 29 × 701

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20389987	Product of the distinct prime numbers

The prime factorization of 20389987 is 17 × 59 × 29 × 701. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 92, 3, 635, 507, 6805, 4940, 29804, 33602, 523716, 157401, 9510333, 9690759, 33750485, 80270066, 268516408, 244939281, 5542515035, 5310803270

Basic calculations (n = 20389987)

Multiplication

n×y

n×2	40779974
n×3	61169961
n×4	81559948
n×5	101949935

Division

n÷y

n÷2	10194993.5
n÷3	6796662.3333333
n÷3	5097496.75
n÷5	4077997.4

Exponentiation

n^y

n²	415751569860169
n³	8.4771691046784E+21
n⁴	1.7284936784119E+29
n⁵	3.5243963632402E+36

Nth Root

^y√n

²√n	4515.527322473
³√n	273.19472928457
⁴√n	67.197673490032
⁵√n	28.965657410077

Divisors of 20389987

1, 17, 29, 59, 493, 701, 1003, 1711, 11917, 20329, 29087, 41359, 345593, 703103, 1199411, 20389987

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20389986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20389987 can be divided by 16 positive divisors. The sum of these divisors (counting 20389987) is 1, the average is 0.0625.

Base conversion 20389987

Base	System	Value
2	Binary	1001101110010000001100011
3	Ternary	1102100220210201
4	Quaternary	1031302001203
5	Quinary	20204434422
6	Senary	2005010031
8	Octal	115620143
10	Decimal	20389987
12	Duodecimal	69b3917
16	Hexadecimal	1372063
20	Vigesimal	678ej7
36	Base36	c510j

Cryptographic Hash Functions

md5	c730a59a4383d3f434da48bb71e0687e
sha1	7fbbb8c448e86a1941257827a13250e83281589b
sha256	54d697f55405f888c00f49fd40a4c52109ccc089ed6d5afb5fd20b866ac159e6
sha512	38404582a50fa7d42b2151fba66480bcea1704294ba1e4a4d94bf2bc267a3b6096fab70b1981a454a150513838f1bb7945a272c683784442341bd3c3ed99e87d
ripemd-160	75da9d0efcd512812079a7c29c138035a94382be

20389987 as geometric shapes

Circle

Radius = n

Diameter	40779974
Circumference	128114066.73198
Area	1.3061220775911E+15

Sphere

Radius = n

Volume	3.5509082909995E+22
Surface area	5.2244883103645E+15
Circumference	128114066.73198

Square

Length = n

Perimeter	81559948
Area	415751569860169
Diagonal	28835796.152011

Cube

Length = n

Surface area	2494509419161014
Volume	8.4771691046784E+21
Space diagonal	35316493.449669

Equilateral Triangle

Length = n

Perimeter	61169961
Area	1.8002571058108E+14
Altitude	17658246.724834

Triangular Pyramid

Length = n

Surface area	1.8002571058108E+14
Volume	9.9904395986387E+20
Height	9611932.0506704