21491037 (number)

21491037 is an odd 8-digits composite number following 21491036 and preceding 21491038. In scientific notation, it is written as 2.1491037 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 14308488 positive integers (up to 21491037) that are relatively prime to 21491037.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491037 × 10^7
Engineering notation 2.1491037 × 10^6

Prime Factorization of 21491037

Prime Factorization 9 × 1867 × 1279

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21491037
Product of the distinct prime numbers

The prime factorization of 21491037 is 9 × 1867 × 1279. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491037)

Multiplication

n×y
n×2 42982074
n×3 64473111
n×4 85964148
n×5 107455185

Division

n÷y
n÷2 10745518.5
n÷3 7163679
n÷3 5372759.25
n÷5 4298207.4

Exponentiation

ny
n2 461864671335369
n3 9.9259507406613E+21
n4 2.1331897462773E+29
n5 4.5844459765266E+36

Nth Root

y√n
2√n 4635.8426418506
3√n 278.02624271355
4√n 68.087022565615
5√n 29.271937849008

Divisors of 21491037

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 -21491036
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 21491037 can be divided by 8 positive divisors. The sum of these divisors (counting 21491037) is 1, the average is 0.125.

Base conversion 21491037

Base System Value
2 Binary 1010001111110110101011101
3 Ternary 1111102212011100
4 Quaternary 1101332311131
5 Quinary 21000203122
6 Senary 2044343313
8 Octal 121766535
10 Decimal 21491037
12 Duodecimal 7244b39
16 Hexadecimal 147ed5d
20 Vigesimal 6e67bh
36 Base36 csml9

Cryptographic Hash Functions

md5 13398e9f095a1ce92f7385dd26d11a9e
sha1 08ce949770a5d83534b9e927029eacd6a12b68d6
sha256 657e992c0cc1aa38b70db59f03a2ea42b96752aab3af4e8152e85c526227fdb6
sha512 759fea439446b2ed954593658d5e3a2804500c6f7337d92f6475b29903b4b58b81437e01d402959b212518fceb5b863069925afa655262a56ede755a726ecece
ripemd-160 45a50610139c0911bcea9b90b7c6e9154aae7b10

21491037 as geometric shapes

Circle

Radius = n
Diameter 42982074
Circumference 135032167.91445
Area 1.4509906584199E+15

Sphere

Radius = n
Volume 4.1577725235674E+22
Surface area 5.8039626336794E+15
Circumference 135032167.91445

Square

Length = n
Perimeter 85964148
Area 461864671335369
Diagonal 30392915.994862

Cube

Length = n
Surface area 2771188028012214
Volume 9.9259507406613E+21
Space diagonal 37223567.991343

Equilateral Triangle

Length = n
Perimeter 64473111
Area 1.9999326924349E+14
Altitude 18611783.995671

Triangular Pyramid

Length = n
Surface area 1.9999326924349E+14
Volume 1.1697845130742E+21
Height 10130971.998287