21491966 (number)

21491966 is an even 8-digits composite number following 21491965 and preceding 21491967. In scientific notation, it is written as 2.1491966 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 10579680 positive integers (up to 21491966) that are relatively prime to 21491966.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491966 × 10^7
Engineering notation 2.1491966 × 10^6

Prime Factorization of 21491966

Prime Factorization 2 × 311 × 109 × 317

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491966
Product of the distinct prime numbers

The prime factorization of 21491966 is 2 × 311 × 109 × 317. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 1, 86, 527, 256, 2064, 6588, 88045, 25901, 442577, 294976, 7232968, 902830, 50296656, 93227977, 694968337, 633943354, 4449297078, 5274158691

Basic calculations (n = 21491966)

Multiplication

n×y
n×2 42983932
n×3 64475898
n×4 85967864
n×5 107459830

Division

n÷y
n÷2 10745983
n÷3 7163988.6666667
n÷3 5372991.5
n÷5 4298393.2

Exponentiation

ny
n2 461904602545156
n3 9.927238013144E+21
n4 2.133558618524E+29
n5 4.5854369288324E+36

Nth Root

y√n
2√n 4635.9428383016
3√n 278.0302487659
4√n 68.087758358618
5√n 29.272190914135

Divisors of 21491966

1, 2, 109, 218, 311, 317, 622, 634, 33899, 34553, 67798, 69106, 98587, 197174, 10745983, 21491966

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 -21491965
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 21491966 can be divided by 16 positive divisors. The sum of these divisors (counting 21491966) is 1, the average is 0.0625.

Base conversion 21491966

Base System Value
2 Binary 1010001111111000011111110
3 Ternary 1111102220102202
4 Quaternary 1101333003332
5 Quinary 21000220331
6 Senary 2044351502
8 Octal 121770376
10 Decimal 21491966
12 Duodecimal 7245592
16 Hexadecimal 147f0fe
20 Vigesimal 6e69i6
36 Base36 csnb2

Cryptographic Hash Functions

md5 a7a6b83a0fc8aa583a23d3f778a3bfeb
sha1 9e15d360bfa0682af6dbaab109e7f17b6e2522a1
sha256 69ddf5629072f0ee585fab30be6bc43d279800f6771ab30466d3b0b6f75c6268
sha512 cca7c6f062c33fcf55ab38a16bae9b515deb3aa9323aad81ac0fcef2b5be94a031aeb0ae7962ebf8b61d9bac76526cd438dcf040f1378773abda42feea243651
ripemd-160 52180662fb9f8c97494d1dd618112d55940be8a4

21491966 as geometric shapes

Circle

Radius = n
Diameter 42983932
Circumference 135038004.9936
Area 1.4511161060152E+15

Sphere

Radius = n
Volume 4.1583117350041E+22
Surface area 5.8044644240607E+15
Circumference 135038004.9936

Square

Length = n
Perimeter 85967864
Area 461904602545156
Diagonal 30394229.799261

Cube

Length = n
Surface area 2771427615270936
Volume 9.927238013144E+21
Space diagonal 37225177.066543

Equilateral Triangle

Length = n
Perimeter 64475898
Area 2.0001055996453E+14
Altitude 18612588.533271

Triangular Pyramid

Length = n
Surface area 2.0001055996453E+14
Volume 1.1699362195912E+21
Height 10131409.933087