20987078 (number)

20987078 is an even 8-digits composite number following 20987077 and preceding 20987079. In scientific notation, it is written as 2.0987078 × 10^7. The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors. There are 8377344 positive integers (up to 20987078) that are relatively prime to 20987078.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0987078 × 10^7
Engineering notation 2.0987078 × 10^6

Prime Factorization of 20987078

Prime Factorization 2 × 7 × 109 × 17 × 809

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20987078
Product of the distinct prime numbers

The prime factorization of 20987078 is 2 × 7 × 109 × 17 × 809. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 34, 71, 622, 616, 6307, 8019, 12800, 44528, 435766, 961208, 5395765, 3683604, 24512852, 37442520, 669686948, 638769082, 805101444, 5029468735

Basic calculations (n = 20987078)

Multiplication

n×y
n×2 41974156
n×3 62961234
n×4 83948312
n×5 104935390

Division

n÷y
n÷2 10493539
n÷3 6995692.6666667
n÷3 5246769.5
n÷5 4197415.6

Exponentiation

ny
n2 440457442978084
n3 9.2439147114616E+21
n4 1.9400275907479E+29
n5 4.0715510369179E+36

Nth Root

y√n
2√n 4581.1655722098
3√n 275.83581742686
4√n 67.684308168214
5√n 29.133347917438

Divisors of 20987078

1, 2, 7, 14, 17, 34, 109, 119, 218, 238, 763, 809, 1526, 1618, 1853, 3706, 5663, 11326, 12971, 13753, 25942, 27506, 88181, 96271, 176362, 192542, 617267, 1234534, 1499077, 2998154, 10493539, 20987078

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20987077
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20987078 can be divided by 32 positive divisors. The sum of these divisors (counting 20987078) is 1, the average is 0.03125.

Base conversion 20987078

Base System Value
2 Binary 1010000000011110011000110
3 Ternary 1110111020212012
4 Quaternary 1100003303012
5 Quinary 20333041303
6 Senary 2025454222
8 Octal 120036306
10 Decimal 20987078
12 Duodecimal 7041372
16 Hexadecimal 1403cc6
20 Vigesimal 6b37di
36 Base36 chtqe

Cryptographic Hash Functions

md5 b875d59068844f7396cdd76a899ac3d8
sha1 64878bd3064774ae2a4a0d78b74893872ca95f76
sha256 e2f3b7d68c65ff12ab70c5587873af619ffc771a95fcced9c3ce1021c76b8852
sha512 bc8b340c5b55958b323b982a6c36e3c14f5a90ed1d17233252c2b766c3918ce34b038c60508c0368cbaa2c10639cf3a89c4573edd4f04f9fdc96d463e62e8c74
ripemd-160 5938b6362a060acf857308703d3137cedd5eb26c

20987078 as geometric shapes

Circle

Radius = n
Diameter 41974156
Circumference 131865700.13023
Area 1.3837378670789E+15

Sphere

Radius = n
Volume 3.8720819397251E+22
Surface area 5.5349514683156E+15
Circumference 131865700.13023

Square

Length = n
Perimeter 83948312
Area 440457442978084
Diagonal 29680210.342182

Cube

Length = n
Surface area 2642744657868504
Volume 9.2439147114616E+21
Space diagonal 36350685.398411

Equilateral Triangle

Length = n
Perimeter 62961234
Area 1.9072366745248E+14
Altitude 18175342.699206

Triangular Pyramid

Length = n
Surface area 1.9072366745248E+14
Volume 1.0894057961974E+21
Height 9893403.447394