21494887 (number)

21494887 is an odd 8-digits composite number following 21494886 and preceding 21494888. In scientific notation, it is written as 2.1494887 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 20664000 positive integers (up to 21494887) that are relatively prime to 21494887.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1494887 × 10^7
Engineering notation 2.1494887 × 10^6

Prime Factorization of 21494887

Prime Factorization 29 × 251 × 2953

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21494887
Product of the distinct prime numbers

The prime factorization of 21494887 is 29 × 251 × 2953. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21494887)

Multiplication

n×y
n×2 42989774
n×3 64484661
n×4 85979548
n×5 107474435

Division

n÷y
n÷2 10747443.5
n÷3 7164962.3333333
n÷3 5373721.75
n÷5 4298977.4

Exponentiation

ny
n2 462030167142769
n3 9.9312862333249E+21
n4 2.1347187534998E+29
n5 4.5885538383258E+36

Nth Root

y√n
2√n 4636.2578659949
3√n 278.04284400835
4√n 68.090071713833
5√n 29.272986554903

Divisors of 21494887

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494886
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494887 can be divided by 8 positive divisors. The sum of these divisors (counting 21494887) is 1, the average is 0.125.

Base conversion 21494887

Base System Value
2 Binary 1010001111111110001100111
3 Ternary 1111110001102221
4 Quaternary 1101333301213
5 Quinary 21000314022
6 Senary 2044413211
8 Octal 121776147
10 Decimal 21494887
12 Duodecimal 7247207
16 Hexadecimal 147fc67
20 Vigesimal 6e6h47
36 Base36 cspk7

Cryptographic Hash Functions

md5 6e244e06a629587cb6d5bd08e725ade4
sha1 c57964f5a42e91efffb4f0250c2e30118e37ec02
sha256 b02e3bce9d0395b30742720b9c727f69a10a18b5618ac1142a5e61ec53a8515b
sha512 2eca5ed3b7867bc8d7ef7503d16677e1c93377f64c90d2d8cb76bf63863bd1160bbbbd1fe7a608a06fb2e7b1ff5525f39b5a066a37f561cd5213c54e2beb7cc8
ripemd-160 e176e872fd57fcdb4a58c74d7cd3c500cd9594c5

21494887 as geometric shapes

Circle

Radius = n
Diameter 42989774
Circumference 135056358.17789
Area 1.4515105788326E+15

Sphere

Radius = n
Volume 4.1600074495081E+22
Surface area 5.8060423153303E+15
Circumference 135056358.17789

Square

Length = n
Perimeter 85979548
Area 462030167142769
Diagonal 30398360.717077

Cube

Length = n
Surface area 2772181002856614
Volume 9.9312862333249E+21
Space diagonal 37230236.386952

Equilateral Triangle

Length = n
Perimeter 64484661
Area 2.000649310302E+14
Altitude 18615118.193476

Triangular Pyramid

Length = n
Surface area 2.000649310302E+14
Volume 1.1704133069148E+21
Height 10132786.905692