21420565 (number)

21420565 is an odd 8-digits composite number following 21420564 and preceding 21420566. In scientific notation, it is written as 2.1420565 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 17136448 positive integers (up to 21420565) that are relatively prime to 21420565.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred twenty thousand five hundred sixty-five

Notation

Scientific notation 2.1420565 × 10^7
Engineering notation 2.1420565 × 10^6

Prime Factorization of 21420565

Prime Factorization 5 × 4284113

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21420565
Product of the distinct prime numbers

The prime factorization of 21420565 is 5 × 4284113. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 28, 46, 642, 259, 2321, 5559, 52089, 34158, 282935, 618554, 7633218, 9269364, 49797543, 81359584, 397903376, 265938199, 6592122523, 824821926

Basic calculations (n = 21420565)

Multiplication

n×y
n×2 42841130
n×3 64261695
n×4 85682260
n×5 107102825

Division

n÷y
n÷2 10710282.5
n÷3 7140188.3333333
n÷3 5355141.25
n÷5 4284113

Exponentiation

ny
n2 458840604919225
n3 9.8286250023116E+21
n4 2.1053470072264E+29
n5 4.5097722415849E+36

Nth Root

y√n
2√n 4628.2356249439
3√n 277.7220147917
4√n 68.031137172209
5√n 29.252715295089

Divisors of 21420565

1, 5, 4284113, 21420565

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 -21420564
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 21420565 can be divided by 4 positive divisors. The sum of these divisors (counting 21420565) is 1, the average is 0.25.

Base conversion 21420565

Base System Value
2 Binary 1010001101101101000010101
3 Ternary 1111022021111021
4 Quaternary 1101231220111
5 Quinary 20440424230
6 Senary 2043041141
8 Octal 121555025
10 Decimal 21420565
12 Duodecimal 72101b1
16 Hexadecimal 146da15
20 Vigesimal 6dhb85
36 Base36 cr47p

Cryptographic Hash Functions

md5 88ab872404795a45dc6a71fc762c6a68
sha1 2f8a1152adcd74179e73b822684bb8e42042cd7b
sha256 cb85efdeb427ab55769fb9efa1aa572572b19af2705251515aa504074b58e454
sha512 7cec0d3239181d2dce1fd5b3e46b6a046fefb83be0bf3cee9c7dbd34f56dac603e876f774d9494f4060bf061ac32e182db7eb37eb084faf4a91282deec74a0af
ripemd-160 aca4184c85e425be0b01eb951515d90c15b58cec

21420565 as geometric shapes

Circle

Radius = n
Diameter 42841130
Circumference 134589379.27949
Area 1.4414902735829E+15

Sphere

Radius = n
Volume 4.1170048136201E+22
Surface area 5.7659610943317E+15
Circumference 134589379.27949

Square

Length = n
Perimeter 85682260
Area 458840604919225
Diagonal 30293253.536694

Cube

Length = n
Surface area 2753043629515350
Volume 9.8286250023116E+21
Space diagonal 37101506.906832

Equilateral Triangle

Length = n
Perimeter 64261695
Area 1.9868381007393E+14
Altitude 18550753.453416

Triangular Pyramid

Length = n
Surface area 1.9868381007393E+14
Volume 1.1583145648124E+21
Height 10097751.178898