21495971 (number)

21495971 is an odd 8-digits composite number following 21495970 and preceding 21495972. In scientific notation, it is written as 2.1495971 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 18425112 positive integers (up to 21495971) that are relatively prime to 21495971.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1495971 × 10^7
Engineering notation 2.1495971 × 10^6

Prime Factorization of 21495971

Prime Factorization 7 × 3070853

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21495971
Product of the distinct prime numbers

The prime factorization of 21495971 is 7 × 3070853. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21495971)

Multiplication

n×y
n×2 42991942
n×3 64487913
n×4 85983884
n×5 107479855

Division

n÷y
n÷2 10747985.5
n÷3 7165323.6666667
n÷3 5373992.75
n÷5 4299194.2

Exponentiation

ny
n2 462076769232841
n3 9.9327888312028E+21
n4 2.1351494066466E+29
n5 4.5897109725943E+36

Nth Root

y√n
2√n 4636.3747691488
3√n 278.04751788539
4√n 68.090930153353
5√n 29.273281799789

Divisors of 21495971

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21495970
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21495971 can be divided by 4 positive divisors. The sum of these divisors (counting 21495971) is 1, the average is 0.25.

Base conversion 21495971

Base System Value
2 Binary 1010010000000000010100011
3 Ternary 1111110002221002
4 Quaternary 1102000002203
5 Quinary 21000332341
6 Senary 2044422215
8 Octal 122000243
10 Decimal 21495971
12 Duodecimal 724796b
16 Hexadecimal 14800a3
20 Vigesimal 6e6jib
36 Base36 csqeb

Cryptographic Hash Functions

md5 262b21d3e48f24901d1900a9fee713fe
sha1 cbf6edf2ab9dd99bb10fd86592bfb2ae0bc98342
sha256 5a45a30d9d801ae5a757efe22c9b1e271253528bf099476568b7b50ea51d715a
sha512 188bf18adfa1928ba12dea162f831224476a900aadf5f3e004bf77a39c43b3d832c0a7569e9d1a94dc88ff49a1d47e15e4ea1cb7aa7733de8d3b0a779327e0d7
ripemd-160 6d83456006c4c028ecc7fc7311e58e4da92957a4

21495971 as geometric shapes

Circle

Radius = n
Diameter 42991942
Circumference 135063169.15076
Area 1.4516569836164E+15

Sphere

Radius = n
Volume 4.1606368562354E+22
Surface area 5.8066279344656E+15
Circumference 135063169.15076

Square

Length = n
Perimeter 85983884
Area 462076769232841
Diagonal 30399893.724579

Cube

Length = n
Surface area 2772460615397046
Volume 9.9327888312028E+21
Space diagonal 37232113.930027

Equilateral Triangle

Length = n
Perimeter 64487913
Area 2.0008511032714E+14
Altitude 18616056.965014

Triangular Pyramid

Length = n
Surface area 2.0008511032714E+14
Volume 1.1705903897729E+21
Height 10133297.908193