21491679 (number)

21491679 is an odd 8-digits composite number following 21491678 and preceding 21491680. In scientific notation, it is written as 2.1491679 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 12204000 positive integers (up to 21491679) that are relatively prime to 21491679.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491679 × 10^7
Engineering notation 2.1491679 × 10^6

Prime Factorization of 21491679

Prime Factorization 33 × 19 × 151 × 227

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491679
Product of the distinct prime numbers

The prime factorization of 21491679 is 33 × 19 × 151 × 227. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 7, 12, 232, 519, 2682, 4010, 71106, 49372, 275453, 225476, 7916438, 8518895, 16017119, 86841128, 170728673, 594152843, 1688381880, 7833146042

Basic calculations (n = 21491679)

Multiplication

n×y
n×2 42983358
n×3 64475037
n×4 85966716
n×5 107458395

Division

n÷y
n÷2 10745839.5
n÷3 7163893
n÷3 5372919.75
n÷5 4298335.8

Exponentiation

ny
n2 461892266239041
n3 9.926840318592E+21
n4 2.1334446561144E+29
n5 4.5851307713475E+36

Nth Root

y√n
2√n 4635.9118844085
3√n 278.0290111711
4√n 68.08753104944
5√n 29.272112734562

Divisors of 21491679

1, 19, 33, 151, 227, 627, 2869, 4313, 4983, 7491, 34277, 94677, 142329, 651263, 1131141, 21491679

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 -21491678
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 21491679 can be divided by 16 positive divisors. The sum of these divisors (counting 21491679) is 1, the average is 0.0625.

Base conversion 21491679

Base System Value
2 Binary 1010001111110111111011111
3 Ternary 1111102220001010
4 Quaternary 1101332333133
5 Quinary 21000213204
6 Senary 2044350303
8 Octal 121767737
10 Decimal 21491679
12 Duodecimal 7245393
16 Hexadecimal 147efdf
20 Vigesimal 6e693j
36 Base36 csn33

Cryptographic Hash Functions

md5 faeda824d379819eef9cd0d896c9d939
sha1 201931b6cf2c428a14c444f9fb1250e02901652e
sha256 bb80c4ef9eb6c4aa60fd23c0a01a392af24d93f92638edb188f5ff48b82379c7
sha512 1e4fbc389eb8f8e90d43de173ae42773cfa1a56990be7d81398c61780c8eefb2e5b4c4f642d0b540c74f29f95ab96f56452fda09a3400fd4b8881e056d4360c1
ripemd-160 8f080e3258390002b5373ede5061edcbc7d802f1

21491679 as geometric shapes

Circle

Radius = n
Diameter 42983358
Circumference 135036201.71942
Area 1.4510773503665E+15

Sphere

Radius = n
Volume 4.1581451490997E+22
Surface area 5.804309401466E+15
Circumference 135036201.71942

Square

Length = n
Perimeter 85966716
Area 461892266239041
Diagonal 30393823.919969

Cube

Length = n
Surface area 2771353597434246
Volume 9.926840318592E+21
Space diagonal 37224679.967961

Equilateral Triangle

Length = n
Perimeter 64475037
Area 2.0000521818729E+14
Altitude 18612339.983981

Triangular Pyramid

Length = n
Surface area 2.0000521818729E+14
Volume 1.1698893508387E+21
Height 10131274.63999