20987718 (number)

20987718 is an even 8-digits composite number following 20987717 and preceding 20987719. In scientific notation, it is written as 2.0987718 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 6988160 positive integers (up to 20987718) that are relatively prime to 20987718.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0987718 × 10^7
Engineering notation 2.0987718 × 10^6

Prime Factorization of 20987718

Prime Factorization 2 × 3 × 1433 × 2441

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20987718
Product of the distinct prime numbers

The prime factorization of 20987718 is 2 × 3 × 1433 × 2441. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 29, 41, 707, 318, 4175, 8646, 99218, 9594, 475541, 991975, 6692857, 5411592, 49868062, 59615498, 467947629, 466023660, 5397350142, 8336211776

Basic calculations (n = 20987718)

Multiplication

n×y
n×2 41975436
n×3 62963154
n×4 83950872
n×5 104938590

Division

n÷y
n÷2 10493859
n÷3 6995906
n÷3 5246929.5
n÷5 4197543.6

Exponentiation

ny
n2 440484306847524
n3 9.2447604155413E+21
n4 1.9402642457894E+29
n5 4.0721718836111E+36

Nth Root

y√n
2√n 4581.2354228963
3√n 275.83862126531
4√n 67.684824169797
5√n 29.133525599298

Divisors of 20987718

1, 2, 3, 6, 1433, 2441, 2866, 4299, 4882, 7323, 8598, 14646, 3497953, 6995906, 10493859, 20987718

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 -20987717
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 20987718 can be divided by 16 positive divisors. The sum of these divisors (counting 20987718) is 1, the average is 0.0625.

Base conversion 20987718

Base System Value
2 Binary 1010000000011111101000110
3 Ternary 1110111021201220
4 Quaternary 1100003331012
5 Quinary 20333101333
6 Senary 2025501210
8 Octal 120037506
10 Decimal 20987718
12 Duodecimal 7041806
16 Hexadecimal 1403f46
20 Vigesimal 6b395i
36 Base36 chu86

Cryptographic Hash Functions

md5 2d3e257095b74d3403011eeee87332da
sha1 c7b9401afba906669171946c55acda46c5af4d13
sha256 b29fae24412a9c16c0fd5628a6214bedaa05ec5687867c7d14aa4571b2343edb
sha512 8a41408a94c6913613db59415848528fa5910eb147df702f322c1836e06ad02b494abec261bf439f9f8464325e796592a3439806a03e26be21d02a988d8032d6
ripemd-160 7ae044305dda38394b9e13cf6d0d1b5926c27d4a

20987718 as geometric shapes

Circle

Radius = n
Diameter 41975436
Circumference 131869721.36883
Area 1.3838222624138E+15

Sphere

Radius = n
Volume 3.8724361874216E+22
Surface area 5.5352890496551E+15
Circumference 131869721.36883

Square

Length = n
Perimeter 83950872
Area 440484306847524
Diagonal 29681115.438862

Cube

Length = n
Surface area 2642905841085144
Volume 9.2447604155413E+21
Space diagonal 36351793.910928

Equilateral Triangle

Length = n
Perimeter 62963154
Area 1.9073529984917E+14
Altitude 18175896.955464

Triangular Pyramid

Length = n
Surface area 1.9073529984917E+14
Volume 1.089505463379E+21
Height 9893705.1462873