21781132 (number)

21781132 is an even 8-digits composite number following 21781131 and preceding 21781133. In scientific notation, it is written as 2.1781132 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 10879920 positive integers (up to 21781132) that are relatively prime to 21781132.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1781132 × 10^7
Engineering notation 2.1781132 × 10^6

Prime Factorization of 21781132

Prime Factorization 2 × 2 × 1381 × 3943

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10890566
Product of the distinct prime numbers

The prime factorization of 21781132 is 2 × 2 × 1381 × 3943. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 73, 8, 677, 492, 4619, 1456, 61656, 33134, 315783, 93786, 4893888, 5524876, 80877112, 85552765, 774482455, 471106643, 4381159009, 975601202

Basic calculations (n = 21781132)

Multiplication

n×y
n×2 43562264
n×3 65343396
n×4 87124528
n×5 108905660

Division

n÷y
n÷2 10890566
n÷3 7260377.3333333
n÷3 5445283
n÷5 4356226.4

Exponentiation

ny
n2 474417711201424
n3 1.0333354790816E+22
n4 2.250721647016E+29
n5 4.9023265288912E+36

Nth Root

y√n
2√n 4667.0260337821
3√n 279.27162731264
4√n 68.315635353718
5√n 29.350539557962

Divisors of 21781132

1, 2, 4, 1381, 2762, 3943, 5524, 7886, 15772, 5445283, 10890566, 21781132

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21781131
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21781132 can be divided by 12 positive divisors. The sum of these divisors (counting 21781132) is 1, the average is 0.083333333333333.

Base conversion 21781132

Base System Value
2 Binary 1010011000101101010001100
3 Ternary 1111222121002121
4 Quaternary 1103011222030
5 Quinary 21033444012
6 Senary 2054502324
8 Octal 123055214
10 Decimal 21781132
12 Duodecimal 73649a4
16 Hexadecimal 14c5a8c
20 Vigesimal 6g2cgc
36 Base36 cyufg

Cryptographic Hash Functions

md5 ace732953a65783c493f7bfddbfc35c9
sha1 928ae91f39e1bd98de3c90bf6977ae4db4f9242a
sha256 23f50523fa596f98a424890a628373d2c62c11b2f76686f71928554bd146e7ff
sha512 6723c20346cdb40e5545768e3166d35324101619acc6f22e6150417cef278454193054e68a9c9a3046d20bfab0ca9305a23171e57b6d436e6d41124eb9eedc5b
ripemd-160 e953a535914b4695ba6f03f701e157002fca0ea6

21781132 as geometric shapes

Circle

Radius = n
Diameter 43562264
Circumference 136854888.55614
Area 1.4904271962433E+15

Sphere

Radius = n
Volume 4.3284255330353E+22
Surface area 5.9617087849731E+15
Circumference 136854888.55614

Square

Length = n
Perimeter 87124528
Area 474417711201424
Diagonal 30803172.278239

Cube

Length = n
Surface area 2846506267208544
Volume 1.0333354790816E+22
Space diagonal 37726027.270364

Equilateral Triangle

Length = n
Perimeter 65343396
Area 2.0542889495285E+14
Altitude 18863013.635182

Triangular Pyramid

Length = n
Surface area 2.0542889495285E+14
Volume 1.2177975408321E+21
Height 10267724.092746