21456021 (number)

21456021 is an odd 8-digits composite number following 21456020 and preceding 21456022. In scientific notation, it is written as 2.1456021 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 14304012 positive integers (up to 21456021) that are relatively prime to 21456021.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred fifty-six thousand twenty-one

Notation

Scientific notation 2.1456021 × 10^7
Engineering notation 2.1456021 × 10^6

Prime Factorization of 21456021

Prime Factorization 3 × 7152007

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21456021
Product of the distinct prime numbers

The prime factorization of 21456021 is 3 × 7152007. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21456021)

Multiplication

n×y
n×2 42912042
n×3 64368063
n×4 85824084
n×5 107280105

Division

n÷y
n÷2 10728010.5
n÷3 7152007
n÷3 5364005.25
n÷5 4291204.2

Exponentiation

ny
n2 460360837152441
n3 9.8775117895204E+21
n4 2.119321003837E+29
n5 4.5472195964067E+36

Nth Root

y√n
2√n 4632.0644425569
3√n 277.87516176009
4√n 68.059271540011
5√n 29.26239289456

Divisors of 21456021

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 -21456020
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 21456021 can be divided by 4 positive divisors. The sum of these divisors (counting 21456021) is 1, the average is 0.25.

Base conversion 21456021

Base System Value
2 Binary 1010001110110010010010101
3 Ternary 1111101002010110
4 Quaternary 1101312102111
5 Quinary 20443043041
6 Senary 2043513233
8 Octal 121662225
10 Decimal 21456021
12 Duodecimal 7228819
16 Hexadecimal 1476495
20 Vigesimal 6e2011
36 Base36 crvkl

Cryptographic Hash Functions

md5 04fae980739a877d9d4ce7abf956a68b
sha1 904087e736245dda54e42fd4a20cd05b9c63d44e
sha256 82f29f0fc03cd26234b0ccb894cbea50bd71cfc145b4c0658fc2791e40ce6a6e
sha512 62329ed7010ba531a233f514c2e84992961a6b11cac4782590cac845e142c5770d1f5a93e18d42e1a82088415ce48f5593064007e502e3ba8f720c8c4a4c3c68
ripemd-160 54b18c284d859eccedae370bc9b81fbbd6b4f28c

21456021 as geometric shapes

Circle

Radius = n
Diameter 42912042
Circumference 134812155.89774
Area 1.4462662239986E+15

Sphere

Radius = n
Volume 4.1374824631605E+22
Surface area 5.7850648959942E+15
Circumference 134812155.89774

Square

Length = n
Perimeter 85824084
Area 460360837152441
Diagonal 30343395.892762

Cube

Length = n
Surface area 2762165022914646
Volume 9.8775117895204E+21
Space diagonal 37162918.500265

Equilateral Triangle

Length = n
Perimeter 64368063
Area 1.9934208994074E+14
Altitude 18581459.250132

Triangular Pyramid

Length = n
Surface area 1.9934208994074E+14
Volume 1.1640759279367E+21
Height 10114465.297587