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

20887987 (number)

20887987 is an odd 8-digits composite number following 20887986 and preceding 20887988. In scientific notation, it is written as 2.0887987 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 20281800 positive integers (up to 20887987) that are relatively prime to 20887987.

Interesting facts

20887987 has 8 divisors, whose sum is 21503232
The reverse of 20887987 is 78978802
Previous prime number is 71

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4

Name

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

Notation

Scientific notation	2.0887987 × 10^7
Engineering notation	2.0887987 × 10^6

Prime Factorization of 20887987

Prime Factorization 67 × 71 × 4391

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20887987	Product of the distinct prime numbers

The prime factorization of 20887987 is 67 × 71 × 4391. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 58, 11, 972, 322, 930, 9665, 90882, 31460, 839410, 393187, 830959, 4241766, 67486950, 64132751, 761981373, 847972470, 182769167, 6106222204

Basic calculations (n = 20887987)

Multiplication

n×y

n×2	41775974
n×3	62663961
n×4	83551948
n×5	104439935

Division

n÷y

n÷2	10443993.5
n÷3	6962662.3333333
n÷3	5221996.75
n÷5	4177597.4

Exponentiation

n^y

n²	436308000912169
n³	9.1135958510494E+21
n⁴	1.9036467165997E+29
n⁵	3.9763347868928E+36

Nth Root

^y√n

²√n	4570.337733691
³√n	275.40101054638
⁴√n	67.604273043137
⁵√n	29.105785050296

Divisors of 20887987

1, 67, 71, 4391, 4757, 294197, 311761, 20887987

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	-20887986	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 20887987 can be divided by 8 positive divisors. The sum of these divisors (counting 20887987) is 1, the average is 0.125.

Base conversion 20887987

Base	System	Value
2	Binary	1001111101011100110110011
3	Ternary	1110022012221011
4	Quaternary	1033223212303
5	Quinary	20321403422
6	Senary	2023411351
8	Octal	117534663
10	Decimal	20887987
12	Duodecimal	6bb3b57
16	Hexadecimal	13eb9b3
20	Vigesimal	6aajj7
36	Base36	cfp9v

Cryptographic Hash Functions

md5	b3c5bd16db506f552a13f7f93fb3568a
sha1	2aaeb9164afa33a4e0c2d834dd80276ac1a7066c
sha256	096cff45d28e8b72d56b0adafb61c7a19a40b42dd8e56473a545da1a74ec72f5
sha512	65c10ba9eb2c36665762393f84de62631114a8159bfe49491dcbba7ade341fe5bd6277fcb79c6bbb50963b0fc901bd50cc055d3425711e3df958a42bd29a06ea
ripemd-160	1988a4640032f34bfe8428c0c51af424c1ff7ab0

20887987 as geometric shapes

Circle

Radius = n

Diameter	41775974
Circumference	131243093.01496
Area	1.3707020103681E+15

Sphere

Radius = n

Volume	3.8174941031258E+22
Surface area	5.4828080414725E+15
Circumference	131243093.01496

Square

Length = n

Perimeter	83551948
Area	436308000912169
Diagonal	29540074.506073

Cube

Length = n

Surface area	2617848005473014
Volume	9.1135958510494E+21
Space diagonal	36179054.751838

Equilateral Triangle

Length = n

Perimeter	62663961
Area	1.8892690633217E+14
Altitude	18089527.375919

Triangular Pyramid

Length = n

Surface area	1.8892690633217E+14
Volume	1.0740475712118E+21
Height	9846691.5020243