21272721 is an odd 8-digits composite number following 21272720
and preceding 21272722 . In scientific notation, it is written as 2.1272721 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14041200 positive integers (up to 21272721) that are relatively prime to 21272721.
21272721 has 8 divisors, whose sum is 28644864
The reverse of 21272721 is 12727212
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million two hundred seventy-two thousand seven hundred twenty-one
Scientific notation
2.1272721 × 10^7
Engineering notation
2.1272721 × 10^6
Prime Factorization
3 × 101 × 70207
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21272721
Product of the distinct prime numbers
The prime factorization of 21272721 is 3 × 101 × 70207.
Since it has a total of 3 prime factors.
5 , 3 , 58 , 94 , 536 , 495 , 3928 , 6332 , 66128 , 69038 , 819303 , 63904 , 562561 , 6881642 , 8248593 , 36899589 , 139237254 , 186251896 , 4037963426 , 3662288249
n×2
42545442
n×3
63818163
n×4
85090884
n×5
106363605
n÷2
10636360.5
n÷3
7090907
n÷3
5318180.25
n÷5
4254544.2
n2
452528658743841
n3
9.6265159019619E+21
n4
2.047821869845E+29
n5
4.3562743294911E+36
2 √n
4612.2360087055
3 √n
277.08159655697
4 √n
67.913444977453
5 √n
29.212223103777
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
-21272720
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 21272721 can be divided by 8 positive divisors.
The sum of these divisors (counting 21272721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001001100010010001
3
Ternary
1111000202200120
4
Quaternary
1101021202101
5
Quinary
20421211341
6
Senary
2035540453
8
Octal
121114221
10
Decimal
21272721
12
Duodecimal
715a729
16
Hexadecimal
1449891
20
Vigesimal
6cj1g1
36
Base36
cny4x
md5
1dd11afb14f735e2a1282751a99f098a
sha1
7fcd80b5c8ec6760b520849f6a867a2a446b774b
sha256
2f65eb728a2fc10ebe402cd4c4278aaa6edeff0ce8fdbaee3001d3bcdaf884d5
sha512
d5535ab712bc25ff398c80ebe98eee8aa72551c4ab840338df6ee07a38c57c049b528f9b8017f4cde6a21e2bbc8567b538d9c7433a17eac64fe728176fbdf465
ripemd-160
49c8c5bb67742929d86f986dbe924d18648fddcc
Diameter
42545442
Circumference
133660448.03093
Area
1.4216607098485E+15
Volume
4.0323455516359E+22
Surface area
5.686642839394E+15
Circumference
133660448.03093
Perimeter
85090884
Area
452528658743841
Diagonal
30084170.546779
Surface area
2715171952463046
Volume
9.6265159019619E+21
Space diagonal
36845433.587237
Perimeter
63818163
Area
1.9595065720633E+14
Altitude
18422716.793619
Surface area
1.9595065720633E+14
Volume
1.1344957789129E+21
Height
10028056.848926