21497872 (number)

21497872 is an even 8-digits composite number following 21497871 and preceding 21497873. In scientific notation, it is written as 2.1497872 × 10^7. The sum of its digits is 40. It has a total of 6 prime factors and 20 positive divisors. There are 9771680 positive integers (up to 21497872) that are relatively prime to 21497872.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1497872 × 10^7
Engineering notation 2.1497872 × 10^6

Prime Factorization of 21497872

Prime Factorization 2 × 2 × 2 × 2 × 11 × 122147

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2687234
Product of the distinct prime numbers

The prime factorization of 21497872 is 2 × 2 × 2 × 2 × 11 × 122147. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 6, 16, 66, 905, 643, 1485, 1022, 34361, 12523, 224458, 343119, 9997424, 7323442, 73259562, 92579174, 628788180, 444366696, 7542705960, 9173738515

Basic calculations (n = 21497872)

Multiplication

n×y
n×2 42995744
n×3 64493616
n×4 85991488
n×5 107489360

Division

n÷y
n÷2 10748936
n÷3 7165957.3333333
n÷3 5374468
n÷5 4299574.4

Exponentiation

ny
n2 462158500528384
n3 9.9354242880711E+21
n4 2.1359047961064E+29
n5 4.5917407910882E+36

Nth Root

y√n
2√n 4636.5797739282
3√n 278.0557140376
4√n 68.092435511797
5√n 29.273799539046

Divisors of 21497872

1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122147, 244294, 488588, 977176, 1343617, 1954352, 2687234, 5374468, 10748936, 21497872

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21497871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21497872 can be divided by 20 positive divisors. The sum of these divisors (counting 21497872) is 1, the average is 0.05.

Base conversion 21497872

Base System Value
2 Binary 1010010000000100000010000
3 Ternary 1111110012112111
4 Quaternary 1102000200100
5 Quinary 21000412442
6 Senary 2044435104
8 Octal 122004020
10 Decimal 21497872
12 Duodecimal 7248a94
16 Hexadecimal 1480810
20 Vigesimal 6e74dc
36 Base36 csrv4

Cryptographic Hash Functions

md5 5a9947c7a470198eb37b18b1bf602c88
sha1 f7afb289cdf7fed01eb154ec25216eb7adcd499d
sha256 3de2b73029607e40924a1c76a4cad51a8efc1f45df30b645f863ee7b81cecb1f
sha512 82343fb7ad485aa17514c2c4313d5fbd88690e90fe538589426fc0880eaca5e3ccb081eec27e14c223cdb80a9e12c1d2ba8cc9c7a0ac1246999579b3a41a2535
ripemd-160 b543167f9b4c19997a74dea82207fc0d630bfeaf

21497872 as geometric shapes

Circle

Radius = n
Diameter 42995744
Circumference 135075113.48603
Area 1.451913750054E+15

Sphere

Radius = n
Volume 4.1617407938269E+22
Surface area 5.8076550002162E+15
Circumference 135075113.48603

Square

Length = n
Perimeter 85991488
Area 462158500528384
Diagonal 30402582.144561

Cube

Length = n
Surface area 2772951003170304
Volume 9.9354242880711E+21
Space diagonal 37235406.558612

Equilateral Triangle

Length = n
Perimeter 64493616
Area 2.0012050101625E+14
Altitude 18617703.279306

Triangular Pyramid

Length = n
Surface area 2.0012050101625E+14
Volume 1.1709009813434E+21
Height 10134194.048187