21087939 (number)

21087939 is an odd 8-digits composite number following 21087938 and preceding 21087940. In scientific notation, it is written as 2.1087939 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 13184640 positive integers (up to 21087939) that are relatively prime to 21087939.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand nine hundred thirty-nine

Notation

Scientific notation 2.1087939 × 10^7
Engineering notation 2.1087939 × 10^6

Prime Factorization of 21087939

Prime Factorization 17 × 3 × 379 × 1091

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21087939
Product of the distinct prime numbers

The prime factorization of 21087939 is 17 × 3 × 379 × 1091. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 82, 43, 370, 830, 5965, 8552, 26680, 74753, 529818, 891972, 4602216, 7327856, 72040919, 52227036, 286103530, 809856187, 1651084561, 7408882433

Basic calculations (n = 21087939)

Multiplication

n×y
n×2 42175878
n×3 63263817
n×4 84351756
n×5 105439695

Division

n÷y
n÷2 10543969.5
n÷3 7029313
n÷3 5271984.75
n÷5 4217587.8

Exponentiation

ny
n2 444701171267721
n3 9.3778311729223E+21
n4 1.9775913172688E+29
n5 4.1703325065495E+36

Nth Root

y√n
2√n 4592.1606025922
3√n 276.27698773351
4√n 67.765482382937
5√n 29.161296412069

Divisors of 21087939

1, 3, 17, 51, 379, 1091, 1137, 3273, 6443, 18547, 19329, 55641, 413489, 1240467, 7029313, 21087939

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 -21087938
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 21087939 can be divided by 16 positive divisors. The sum of these divisors (counting 21087939) is 1, the average is 0.0625.

Base conversion 21087939

Base System Value
2 Binary 1010000011100011011000011
3 Ternary 1110200101012210
4 Quaternary 1100130123003
5 Quinary 20344303224
6 Senary 2031553203
8 Octal 120343303
10 Decimal 21087939
12 Duodecimal 708b803
16 Hexadecimal 141c6c3
20 Vigesimal 6bfjgj
36 Base36 cjzk3

Cryptographic Hash Functions

md5 e8ef460d3a4b4e392c973cd567bc3582
sha1 d2d72c8124699e116b4a3533bab349e383a6e063
sha256 e69e12f7f2ec39d85477ac99c787522dff3b88fdcff33107491dc447197dc08b
sha512 8522fa9ccb965ba199c3992205558dbfc392c109ef1468a7e9a1f8c1b7f4631b0c10b48a120007737a502584d570722b497772ba7f19c5e980ffe8a20e09a9eb
ripemd-160 b89c73ed590a540a578130be701a01fdd3b8030e

21087939 as geometric shapes

Circle

Radius = n
Diameter 42175878
Circumference 132499428.4835
Area 1.3970699326974E+15

Sphere

Radius = n
Volume 3.9281767359277E+22
Surface area 5.5882797307898E+15
Circumference 132499428.4835

Square

Length = n
Perimeter 84351756
Area 444701171267721
Diagonal 29822849.336297

Cube

Length = n
Surface area 2668207027606326
Volume 9.3778311729223E+21
Space diagonal 36525381.774913

Equilateral Triangle

Length = n
Perimeter 63263817
Area 1.9256125570527E+14
Altitude 18262690.887457

Triangular Pyramid

Length = n
Surface area 1.9256125570527E+14
Volume 1.1051880025327E+21
Height 9940949.7787655