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

20155987 (number)

20155987 is an odd 8-digits prime number following 20155986 and preceding 20155988. In scientific notation, it is written as 2.0155987 × 10^7. The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors. There are 20155986 positive integers (up to 20155987) that are relatively prime to 20155987.

Interesting facts

20155987 has 2 divisors, whose sum is 20155988
The reverse of 20155987 is 78955102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty million one hundred fifty-five thousand nine hundred eighty-seven

Notation

Scientific notation	2.0155987 × 10^7
Engineering notation	2.0155987 × 10^6

Prime Factorization of 20155987

Prime Factorization 20155987

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20155987	Product of the distinct prime numbers

The prime factorization of 20155987 is 20155987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 3, 99, 81, 828, 195, 8898, 2286, 21329, 44118, 176257, 253298, 4100354, 9541601, 5029539, 50647921, 269038774, 232961630, 5023892609, 8888359895

Basic calculations (n = 20155987)

Multiplication

n×y

n×2	40311974
n×3	60467961
n×4	80623948
n×5	100779935

Division

n÷y

n÷2	10077993.5
n÷3	6718662.3333333
n÷3	5038996.75
n÷5	4031197.4

Exponentiation

n^y

n²	406263811944169
n³	8.1886481121171E+21
n⁴	1.6505028489541E+29
n⁵	3.3267513966981E+36

Nth Root

^y√n

²√n	4489.5419588194
³√n	272.14562469527
⁴√n	67.004044346736
⁵√n	28.898866842935

Divisors of 20155987

1, 20155987

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20155988	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10077994	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4489.5420701893	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999007739	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20155987 can be divided by 2 positive divisors. The sum of these divisors (counting 20155987) is 20155988, the average is 10077994.

Base conversion 20155987

Base	System	Value
2	Binary	1001100111000111001010011
3	Ternary	1101221000211001
4	Quaternary	1030320321103
5	Quinary	20124442422
6	Senary	2000002431
8	Octal	114707123
10	Decimal	20155987
12	Duodecimal	6900417
16	Hexadecimal	1338e53
20	Vigesimal	65j9j7
36	Base36	c00gj

Cryptographic Hash Functions

md5	6a9915b37d5d75f5fc7b991d6e613801
sha1	a6ce902c12f0f8138b9b20b51ef3045b78f2a7bb
sha256	837b76ebaf468f6ebf601289596c2dcdc8cf5f3b8f5c6f5b57da39392af72d99
sha512	2c87a51d59cd57bdd6ef8b5dc9dbe250efdc863f158fddbfc6075fa8f8a7c2d059a5227987496e90793cecc031c67cf6148b770002c5a32133af4b7bf9422d5e
ripemd-160	97e90c3c32d1fefde028c0f9f3e85132177519f7

20155987 as geometric shapes

Circle

Radius = n

Diameter	40311974
Circumference	126643801.3701
Area	1.2763154070232E+15

Sphere

Radius = n

Volume	3.4300529002479E+22
Surface area	5.1052616280927E+15
Circumference	126643801.3701

Square

Length = n

Perimeter	80623948
Area	406263811944169
Diagonal	28504870.178416

Cube

Length = n

Surface area	2437582871665014
Volume	8.1886481121171E+21
Space diagonal	34911193.560698

Equilateral Triangle

Length = n

Perimeter	60467961
Area	1.7591739089098E+14
Altitude	17455596.780349

Triangular Pyramid

Length = n

Surface area	1.7591739089098E+14
Volume	9.6504143480474E+20
Height	9501623.3928053