21131661 (number)

21131661 is an odd 8-digits composite number following 21131660 and preceding 21131662. In scientific notation, it is written as 2.1131661 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 14087772 positive integers (up to 21131661) that are relatively prime to 21131661.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand six hundred sixty-one

Notation

Scientific notation 2.1131661 × 10^7
Engineering notation 2.1131661 × 10^6

Prime Factorization of 21131661

Prime Factorization 3 × 7043887

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21131661
Product of the distinct prime numbers

The prime factorization of 21131661 is 3 × 7043887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 9, 48, 13, 496, 347, 5049, 8896, 13940, 8256, 538875, 181440, 7852373, 2372053, 78593545, 73297314, 484842755, 799446071, 3002184963, 5424802612

Basic calculations (n = 21131661)

Multiplication

n×y
n×2 42263322
n×3 63394983
n×4 84526644
n×5 105658305

Division

n÷y
n÷2 10565830.5
n÷3 7043887
n÷3 5282915.25
n÷5 4226332.2

Exponentiation

ny
n2 446547096618921
n3 9.4362818662853E+21
n4 1.9940430949879E+29
n5 4.2137442702675E+36

Nth Root

y√n
2√n 4596.9186418731
3√n 276.46779259638
4√n 67.800579952336
5√n 29.173378523377

Divisors of 21131661

1, 3, 7043887, 21131661

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131660
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131661 can be divided by 4 positive divisors. The sum of these divisors (counting 21131661) is 1, the average is 0.25.

Base conversion 21131661

Base System Value
2 Binary 1010000100111000110001101
3 Ternary 1110202121012010
4 Quaternary 1100213012031
5 Quinary 20402203121
6 Senary 2032531433
8 Octal 120470615
10 Decimal 21131661
12 Duodecimal 70b0b79
16 Hexadecimal 142718d
20 Vigesimal 6c1931
36 Base36 ckxal

Cryptographic Hash Functions

md5 bf66077b8ba4291219d8bf36216a39a0
sha1 45802f4b43074bc2338a2bdb2ac88a8565300260
sha256 68f7812db3bef0c679dd4232959ca7305ad1c8ebd64861c1ecab8e6338414629
sha512 3c4c309c9a7f59bb0f9a621e872a9943a97412d26094406a5a080c476a901e673ac830b8f13f405c5f116687ac28389d061b1ac73840ef6407e96bfc6c249ef0
ripemd-160 f2706de9e7933109ccb7afa46d7b77215dc8fb00

21131661 as geometric shapes

Circle

Radius = n
Diameter 42263322
Circumference 132774141.9115
Area 1.4028690782199E+15

Sphere

Radius = n
Volume 3.9526605051099E+22
Surface area 5.6114763128794E+15
Circumference 132774141.9115

Square

Length = n
Perimeter 84526644
Area 446547096618921
Diagonal 29884681.581671

Cube

Length = n
Surface area 2679282579713526
Volume 9.4362818662853E+21
Space diagonal 36601110.500322

Equilateral Triangle

Length = n
Perimeter 63394983
Area 1.9336056482908E+14
Altitude 18300555.250161

Triangular Pyramid

Length = n
Surface area 1.9336056482908E+14
Volume 1.1120764828063E+21
Height 9961560.5272235