21131895 (number)

21131895 is an odd 8-digits composite number following 21131894 and preceding 21131896. In scientific notation, it is written as 2.1131895 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 10468224 positive integers (up to 21131895) that are relatively prime to 21131895.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred ninety-five

Notation

Scientific notation 2.1131895 × 10^7
Engineering notation 2.1131895 × 10^6

Prime Factorization of 21131895

Prime Factorization 3 × 5 × 53 × 19 × 1399

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21131895
Product of the distinct prime numbers

The prime factorization of 21131895 is 3 × 5 × 53 × 19 × 1399. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 3, 90, 54, 351, 821, 5429, 4883, 55340, 98107, 316861, 141371, 7657271, 7080437, 91367281, 71432651, 610799747, 676880159, 3821053241, 9677803920

Basic calculations (n = 21131895)

Multiplication

n×y
n×2 42263790
n×3 63395685
n×4 84527580
n×5 105659475

Division

n÷y
n÷2 10565947.5
n÷3 7043965
n÷3 5282973.75
n÷5 4226379

Exponentiation

ny
n2 446556986291025
n3 9.4365953458184E+21
n4 1.9941314200532E+29
n5 4.2139775784766E+36

Nth Root

y√n
2√n 4596.9440936344
3√n 276.468813075
4√n 67.800767647825
5√n 29.173443132972

Divisors of 21131895

1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1399, 3021, 4197, 5035, 6995, 15105, 20985, 26581, 74147, 79743, 132905, 222441, 370735, 398715, 1112205, 1408793, 4226379, 7043965, 21131895

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131894
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131895 can be divided by 32 positive divisors. The sum of these divisors (counting 21131895) is 1, the average is 0.03125.

Base conversion 21131895

Base System Value
2 Binary 1010000100111001001110111
3 Ternary 1110202121111210
4 Quaternary 1100213021313
5 Quinary 20402210040
6 Senary 2032532503
8 Octal 120471167
10 Decimal 21131895
12 Duodecimal 70b1133
16 Hexadecimal 1427277
20 Vigesimal 6c19ef
36 Base36 ckxh3

Cryptographic Hash Functions

md5 8001696c4a6e7e59533b474cf5b31dd4
sha1 4ea9c5a04bcd6c9b9897bd25be782d69af74e79d
sha256 43a5149c3cdea93d74255e88b66b7a9fa3a1857ff54b7566c59dad6d470718db
sha512 4ccf6f2b54f015bf6199db5b52fb26609e65d66e42e7390c181c6c99d099cbcace7159aa869b5a0f2339f3e3ef602309e23d1fc173c0c55113e4a691a53fadf9
ripemd-160 fc101f0df99846c6a92098c2fb15569ced402465

21131895 as geometric shapes

Circle

Radius = n
Diameter 42263790
Circumference 132775612.17686
Area 1.4029001475411E+15

Sphere

Radius = n
Volume 3.9527918151097E+22
Surface area 5.6116005901643E+15
Circumference 132775612.17686

Square

Length = n
Perimeter 84527580
Area 446556986291025
Diagonal 29885012.507644

Cube

Length = n
Surface area 2679341917746150
Volume 9.4365953458184E+21
Space diagonal 36601515.800211

Equilateral Triangle

Length = n
Perimeter 63395685
Area 1.9336484718272E+14
Altitude 18300757.900105

Triangular Pyramid

Length = n
Surface area 1.9336484718272E+14
Volume 1.1121134267236E+21
Height 9961670.8358814