21491026 (number)

21491026 is an even 8-digits composite number following 21491025 and preceding 21491027. In scientific notation, it is written as 2.1491026 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 10113408 positive integers (up to 21491026) that are relatively prime to 21491026.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491026 × 10^7
Engineering notation 2.1491026 × 10^6

Prime Factorization of 21491026

Prime Factorization 2 × 17 × 632089

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21491026
Product of the distinct prime numbers

The prime factorization of 21491026 is 2 × 17 × 632089. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491026)

Multiplication

n×y
n×2 42982052
n×3 64473078
n×4 85964104
n×5 107455130

Division

n÷y
n÷2 10745513
n÷3 7163675.3333333
n÷3 5372756.5
n÷5 4298205.2

Exponentiation

ny
n2 461864198532676
n3 9.9259354991349E+21
n4 2.1331853788623E+29
n5 4.584434243995E+36

Nth Root

y√n
2√n 4635.8414554426
3√n 278.02619527844
4√n 68.087013853176
5√n 29.27193485249

Divisors of 21491026

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491025
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491026 can be divided by 8 positive divisors. The sum of these divisors (counting 21491026) is 1, the average is 0.125.

Base conversion 21491026

Base System Value
2 Binary 1010001111110110101010010
3 Ternary 1111102212010221
4 Quaternary 1101332311102
5 Quinary 21000203101
6 Senary 2044343254
8 Octal 121766522
10 Decimal 21491026
12 Duodecimal 7244b2a
16 Hexadecimal 147ed52
20 Vigesimal 6e67b6
36 Base36 csmky

Cryptographic Hash Functions

md5 980600c134e74ae758646ae66cdcb2aa
sha1 eee5e10b429365e3ab345ac635d9e04762a78d88
sha256 d66bbe8f01ba0474b2d7ca9af65fca2da56932edee867855e06fc9a8c77ac78a
sha512 b68344132f393f9e55efc054a31fa574a5b262cf4afdcd4d505ca18a42d5e4d76c6687c02b4c3455d4ae2338de77a553df63a9c171f2f8265b30e9bf8f2024ed
ripemd-160 5c36121ac8815246cb8265e190d6087a99831b88

21491026 as geometric shapes

Circle

Radius = n
Diameter 42982052
Circumference 135032098.79941
Area 1.4509891730664E+15

Sphere

Radius = n
Volume 4.1577661392118E+22
Surface area 5.8039566922656E+15
Circumference 135032098.79941

Square

Length = n
Perimeter 85964104
Area 461864198532676
Diagonal 30392900.438513

Cube

Length = n
Surface area 2771185191196056
Volume 9.9259354991349E+21
Space diagonal 37223548.938784

Equilateral Triangle

Length = n
Perimeter 64473078
Area 1.9999306451392E+14
Altitude 18611774.469392

Triangular Pyramid

Length = n
Surface area 1.9999306451392E+14
Volume 1.1697827168431E+21
Height 10130966.812838