21131886 (number)

21131886 is an even 8-digits composite number following 21131885 and preceding 21131887. In scientific notation, it is written as 2.1131886 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 6998784 positive integers (up to 21131886) that are relatively prime to 21131886.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred eighty-six

Notation

Scientific notation 2.1131886 × 10^7
Engineering notation 2.1131886 × 10^6

Prime Factorization of 21131886

Prime Factorization 2 × 3 × 157 × 22433

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21131886
Product of the distinct prime numbers

The prime factorization of 21131886 is 2 × 3 × 157 × 22433. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 8, 91, 93, 516, 736, 9683, 5367, 68440, 87126, 27936, 90496, 6136132, 763105, 18651009, 16272629, 435762065, 172406146, 7157286168, 7208011456

Basic calculations (n = 21131886)

Multiplication

n×y
n×2 42263772
n×3 63395658
n×4 84527544
n×5 105659430

Division

n÷y
n÷2 10565943
n÷3 7043962
n÷3 5282971.5
n÷5 4226377.2

Exponentiation

ny
n2 446556605916996
n3 9.4365832887849E+21
n4 1.9941280228811E+29
n5 4.2139686048928E+36

Nth Root

y√n
2√n 4596.9431147231
3√n 276.46877382596
4√n 67.800760428797
5√n 29.173440647998

Divisors of 21131886

1, 2, 3, 6, 157, 314, 471, 942, 22433, 44866, 67299, 134598, 3521981, 7043962, 10565943, 21131886

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 -21131885
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 21131886 can be divided by 16 positive divisors. The sum of these divisors (counting 21131886) is 1, the average is 0.0625.

Base conversion 21131886

Base System Value
2 Binary 1010000100111001001101110
3 Ternary 1110202121111110
4 Quaternary 1100213021232
5 Quinary 20402210021
6 Senary 2032532450
8 Octal 120471156
10 Decimal 21131886
12 Duodecimal 70b1126
16 Hexadecimal 142726e
20 Vigesimal 6c19e6
36 Base36 ckxgu

Cryptographic Hash Functions

md5 28a7dce3c6dd3bd2c7971faf79714ba7
sha1 9138215f62f9c0c3df1294156e2d38ce28738020
sha256 b6c0f9c9dbba8cf039a70c21ad14a83ea485e2dce160c44707bfb646c48f5c47
sha512 88a600b72ca8571eb7007f03442beed5c4cef46c7511bf03d8b41279ef3fe336987e16664f5aa762f5a5d90f986f8eda0f5b9ada621663518be53c74dd1f5bda
ripemd-160 d6ac969c0948fb11b49d0c6574d3e0a213c62049

21131886 as geometric shapes

Circle

Radius = n
Diameter 42263772
Circumference 132775555.62819
Area 1.4028989525608E+15

Sphere

Radius = n
Volume 3.9527867646713E+22
Surface area 5.6115958102433E+15
Circumference 132775555.62819

Square

Length = n
Perimeter 84527544
Area 446556605916996
Diagonal 29884999.779722

Cube

Length = n
Surface area 2679339635501976
Volume 9.4365832887849E+21
Space diagonal 36601500.211753

Equilateral Triangle

Length = n
Perimeter 63395658
Area 1.9336468247594E+14
Altitude 18300750.105877

Triangular Pyramid

Length = n
Surface area 1.9336468247594E+14
Volume 1.1121120057886E+21
Height 9961666.5932407