21497428 (number)

21497428 is an even 8-digits composite number following 21497427 and preceding 21497429. In scientific notation, it is written as 2.1497428 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 10693760 positive integers (up to 21497428) that are relatively prime to 21497428.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1497428 × 10^7
Engineering notation 2.1497428 × 10^6

Prime Factorization of 21497428

Prime Factorization 2 × 2 × 197 × 27281

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10748714
Product of the distinct prime numbers

The prime factorization of 21497428 is 2 × 2 × 197 × 27281. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 93, 13, 289, 364, 3071, 6379, 9728, 10421, 687663, 139927, 7569218, 9229709, 87584288, 15577420, 823095814, 535456826, 3194698428, 95401154

Basic calculations (n = 21497428)

Multiplication

n×y
n×2 42994856
n×3 64492284
n×4 85989712
n×5 107487140

Division

n÷y
n÷2 10748714
n÷3 7165809.3333333
n÷3 5374357
n÷5 4299485.6

Exponentiation

ny
n2 462139410615184
n3 9.9348087056624E+21
n4 2.1357283484375E+29
n5 4.5912666398094E+36

Nth Root

y√n
2√n 4636.5318935601
3√n 278.05379977702
4√n 68.092083927283
5√n 29.273678618479

Divisors of 21497428

1, 2, 4, 197, 394, 788, 27281, 54562, 109124, 5374357, 10748714, 21497428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21497427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21497428 can be divided by 12 positive divisors. The sum of these divisors (counting 21497428) is 1, the average is 0.083333333333333.

Base conversion 21497428

Base System Value
2 Binary 1010010000000011001010100
3 Ternary 1111110011221001
4 Quaternary 1102000121110
5 Quinary 21000404203
6 Senary 2044433044
8 Octal 122003124
10 Decimal 21497428
12 Duodecimal 7248784
16 Hexadecimal 1480654
20 Vigesimal 6e73b8
36 Base36 csris

Cryptographic Hash Functions

md5 2f6596c187f23dac53ff29f2baa04ecc
sha1 c738ee0a4e689a44d11b2fb467ae9091a694c4f8
sha256 e5bfc44bc240c4936b0c2442b79d772d0fcf3b34156fba59a7f0e4651864cc04
sha512 71e6bebfe88debda693b103e44ca4db7359b65e99ec0a72d72f8935b503f40cf3cf4ac38e0122a3582bcf0a5eca0ed06426d0d7f9f6e8f81eae2ab1ae1288fcc
ripemd-160 a66b713a727858bb78c5fcb0490aad6de2b12152

21497428 as geometric shapes

Circle

Radius = n
Diameter 42994856
Circumference 135072323.75175
Area 1.451853777323E+15

Sphere

Radius = n
Volume 4.1614829392705E+22
Surface area 5.8074151092919E+15
Circumference 135072323.75175

Square

Length = n
Perimeter 85989712
Area 462139410615184
Diagonal 30401954.233739

Cube

Length = n
Surface area 2772836463691104
Volume 9.9348087056624E+21
Space diagonal 37234637.528054

Equilateral Triangle

Length = n
Perimeter 64492284
Area 2.0011223484136E+14
Altitude 18617318.764027

Triangular Pyramid

Length = n
Surface area 2.0011223484136E+14
Volume 1.1708284342608E+21
Height 10133984.74458