21131686 (number)

21131686 is an even 8-digits composite number following 21131685 and preceding 21131687. In scientific notation, it is written as 2.1131686 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 9910728 positive integers (up to 21131686) that are relatively prime to 21131686.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131686 × 10^7
Engineering notation 2.1131686 × 10^6

Prime Factorization of 21131686

Prime Factorization 2 × 19 × 103 × 5399

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21131686
Product of the distinct prime numbers

The prime factorization of 21131686 is 2 × 19 × 103 × 5399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 87, 73, 108, 921, 8233, 8905, 16630, 91599, 919670, 459910, 9438729, 4888153, 4040199, 95106854, 771847336, 937322968, 1333576265, 5088087854

Basic calculations (n = 21131686)

Multiplication

n×y
n×2 42263372
n×3 63395058
n×4 84526744
n×5 105658430

Division

n÷y
n÷2 10565843
n÷3 7043895.3333333
n÷3 5282921.5
n÷5 4226337.2

Exponentiation

ny
n2 446548153202596
n3 9.4363153573572E+21
n4 1.9940525312865E+29
n5 4.2137691958651E+36

Nth Root

y√n
2√n 4596.921361085
3√n 276.46790162223
4√n 67.800600005347
5√n 29.173385426139

Divisors of 21131686

1, 2, 19, 38, 103, 206, 1957, 3914, 5399, 10798, 102581, 205162, 556097, 1112194, 10565843, 21131686

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 -21131685
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 21131686 can be divided by 16 positive divisors. The sum of these divisors (counting 21131686) is 1, the average is 0.0625.

Base conversion 21131686

Base System Value
2 Binary 1010000100111000110100110
3 Ternary 1110202121020001
4 Quaternary 1100213012212
5 Quinary 20402203221
6 Senary 2032531514
8 Octal 120470646
10 Decimal 21131686
12 Duodecimal 70b0b9a
16 Hexadecimal 14271a6
20 Vigesimal 6c1946
36 Base36 ckxba

Cryptographic Hash Functions

md5 3d637ac3967a0f2845c3f88f52ad2acf
sha1 42074a5654be918cce2d4cd64e3bf3101c66bd36
sha256 a794b9d8c299daf526126ce67caf625dbf1fa083459a3ef1e15f8852a733767c
sha512 0065318b3d272b210374c4ccf4e4c645675a5cf4c318694c09f414342486c9dabf32890d30ab81fbca5d9a4506868ead8c0a3b6122098aa8fc5dccbac2fb584a
ripemd-160 2081b284ae2583bbde11629b6a4d8c3440325de7

21131686 as geometric shapes

Circle

Radius = n
Diameter 42263372
Circumference 132774298.99113
Area 1.4028723975754E+15

Sphere

Radius = n
Volume 3.9526745338173E+22
Surface area 5.6114895903015E+15
Circumference 132774298.99113

Square

Length = n
Perimeter 84526744
Area 446548153202596
Diagonal 29884716.93701

Cube

Length = n
Surface area 2679288919215576
Volume 9.4363153573572E+21
Space diagonal 36601153.801592

Equilateral Triangle

Length = n
Perimeter 63395058
Area 1.9336102234324E+14
Altitude 18300576.900796

Triangular Pyramid

Length = n
Surface area 1.9336102234324E+14
Volume 1.112080429767E+21
Height 9961572.3123366