21491631 (number)

21491631 is an odd 8-digits composite number following 21491630 and preceding 21491632. In scientific notation, it is written as 2.1491631 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 12139776 positive integers (up to 21491631) that are relatively prime to 21491631.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand six hundred thirty-one

Notation

Scientific notation 2.1491631 × 10^7
Engineering notation 2.1491631 × 10^6

Prime Factorization of 21491631

Prime Factorization 9 × 7 × 89 × 3833

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491631
Product of the distinct prime numbers

The prime factorization of 21491631 is 9 × 7 × 89 × 3833. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 1, 15, 416, 407, 8199, 3558, 25954, 5381, 454824, 1819, 5399322, 3014016, 5595397, 90740914, 725466920, 823038618, 5068626327, 7066206849

Basic calculations (n = 21491631)

Multiplication

n×y
n×2 42983262
n×3 64474893
n×4 85966524
n×5 107458155

Division

n÷y
n÷2 10745815.5
n÷3 7163877
n÷3 5372907.75
n÷5 4298326.2

Exponentiation

ny
n2 461890203040161
n3 9.9267738062542E+21
n4 2.1334255966448E+29
n5 4.5850795689045E+36

Nth Root

y√n
2√n 4635.9067074306
3√n 278.02880418552
4√n 68.087493032352
5√n 29.272099659151

Divisors of 21491631

1, 7, 9, 63, 89, 623, 801, 3833, 5607, 26831, 34497, 241479, 341137, 2387959, 3070233, 21491631

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 -21491630
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 21491631 can be divided by 16 positive divisors. The sum of these divisors (counting 21491631) is 1, the average is 0.0625.

Base conversion 21491631

Base System Value
2 Binary 1010001111110111110101111
3 Ternary 1111102212222100
4 Quaternary 1101332332233
5 Quinary 21000213011
6 Senary 2044350143
8 Octal 121767657
10 Decimal 21491631
12 Duodecimal 7245353
16 Hexadecimal 147efaf
20 Vigesimal 6e691b
36 Base36 csn1r

Cryptographic Hash Functions

md5 ff363169d9edf52ead1e3118569a9efb
sha1 45ccce3aad7e4e1fbc6d99b6e5b0d2ddfd09bfcf
sha256 d6eaabc58c313f4cea036960ad80a89f4b9cca73a4987e9916eef4edb55d1657
sha512 d5a0d3acc516c28da42e8f8eea5587c91a6a03a142f00b1d7175b3649e8004111325ad7baf97f2111b731f6576df90cb9a456443f35da660e2a83082eee080d0
ripemd-160 22d01bc5be57e8350f0167a042e4a107ca3662a4

21491631 as geometric shapes

Circle

Radius = n
Diameter 42983262
Circumference 135035900.12653
Area 1.4510708686361E+15

Sphere

Radius = n
Volume 4.1581172884768E+22
Surface area 5.8042834745443E+15
Circumference 135035900.12653

Square

Length = n
Perimeter 85966524
Area 461890203040161
Diagonal 30393756.037718

Cube

Length = n
Surface area 2771341218240966
Volume 9.9267738062542E+21
Space diagonal 37224596.829522

Equilateral Triangle

Length = n
Perimeter 64474893
Area 2.0000432479597E+14
Altitude 18612298.414761

Triangular Pyramid

Length = n
Surface area 2.0000432479597E+14
Volume 1.1698815122846E+21
Height 10131252.012573