21493923 (number)

21493923 is an odd 8-digits composite number following 21493922 and preceding 21493924. In scientific notation, it is written as 2.1493923 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 13026600 positive integers (up to 21493923) that are relatively prime to 21493923.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-three thousand nine hundred twenty-three

Notation

Scientific notation 2.1493923 × 10^7
Engineering notation 2.1493923 × 10^6

Prime Factorization of 21493923

Prime Factorization 33 × 651331

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21493923
Product of the distinct prime numbers

The prime factorization of 21493923 is 33 × 651331. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21493923)

Multiplication

n×y
n×2 42987846
n×3 64481769
n×4 85975692
n×5 107469615

Division

n÷y
n÷2 10746961.5
n÷3 7164641
n÷3 5373480.75
n÷5 4298784.6

Exponentiation

ny
n2 461988725929929
n3 9.929950102006E+21
n4 2.1343358288636E+29
n5 4.5875249961735E+36

Nth Root

y√n
2√n 4636.1539016732
3√n 278.03868740266
4√n 68.089308277242
5√n 29.272723983946

Divisors of 21493923

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 -21493922
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 21493923 can be divided by 4 positive divisors. The sum of these divisors (counting 21493923) is 1, the average is 0.25.

Base conversion 21493923

Base System Value
2 Binary 1010001111111100010100011
3 Ternary 1111110000010020
4 Quaternary 1101333202203
5 Quinary 21000301143
6 Senary 2044404523
8 Octal 121774243
10 Decimal 21493923
12 Duodecimal 7246743
16 Hexadecimal 147f8a3
20 Vigesimal 6e6eg3
36 Base36 csotf

Cryptographic Hash Functions

md5 8d99b4621d6752ad89d7ed8475cf6f42
sha1 db438f2d47785a3693b6fcc502ac5056e4aeeab9
sha256 db9669ea551ba0ecac9632647b8797b2c37416af002b02ee61b8b3a3f8ee712b
sha512 9b38f5390ab2c1b4ec28e43e7efc53fa0fbf6835f9757380f0bf15aa42e76e70879c9a2e0d89a4ff27dd8b7280592f1f165b6863a1a3c4f96db21f8ffc801970
ripemd-160 c9ad109ddddd14f3701b13d1b71d7e908e16c071

21493923 as geometric shapes

Circle

Radius = n
Diameter 42987846
Circumference 135050301.18725
Area 1.4513803874228E+15

Sphere

Radius = n
Volume 4.15944777213E+22
Surface area 5.8055215496911E+15
Circumference 135050301.18725

Square

Length = n
Perimeter 85975692
Area 461988725929929
Diagonal 30396997.415203

Cube

Length = n
Surface area 2771932355579574
Volume 9.929950102006E+21
Space diagonal 37228566.689973

Equilateral Triangle

Length = n
Perimeter 64481769
Area 2.0004698645866E+14
Altitude 18614283.344987

Triangular Pyramid

Length = n
Surface area 2.0004698645866E+14
Volume 1.1702558423287E+21
Height 10132332.471734