21402021 is an odd 8-digits composite number following 21402020
and preceding 21402022 . In scientific notation, it is written as 2.1402021 × 10^7.
The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors.
There are 13882320 positive integers (up to 21402021) that are relatively prime to 21402021.
21402021 has 8 divisors, whose sum is 29307424
The reverse of 21402021 is 12020412
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3
Name
twenty-one million four hundred two thousand twenty-one
Scientific notation
2.1402021 × 10^7
Engineering notation
2.1402021 × 10^6
Prime Factorization
3 × 37 × 192811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21402021
Product of the distinct prime numbers
The prime factorization of 21402021 is 3 × 37 × 192811.
Since it has a total of 3 prime factors.
7 , 3 , 21 , 46 , 626 , 359 , 5208 , 7951 , 58796 , 41578 , 899456 , 838251 , 3805079 , 8179761 , 78515081 , 77294819 , 497669274 , 100439546 , 1752541489 , 1210957647
n×2
42804042
n×3
64206063
n×4
85608084
n×5
107010105
n÷2
10701010.5
n÷3
7134007
n÷3
5350505.25
n÷5
4280404.2
n2
458046502884441
n3
9.8031208737094E+21
n4
2.0980659880467E+29
n5
4.490285233556E+36
2 √n
4626.2318359546
3 √n
277.64184940055
4 √n
68.016408578773
5 √n
29.24764866593
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
-21402020
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 21402021 can be divided by 8 positive divisors.
The sum of these divisors (counting 21402021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001101001000110100101
3
Ternary
1111021100001110
4
Quaternary
1101221012211
5
Quinary
20434331041
6
Senary
2042415233
8
Octal
121510645
10
Decimal
21402021
12
Duodecimal
7201519
16
Hexadecimal
14691a5
20
Vigesimal
6df511
36
Base36
cqpwl
md5
ca79143637558bdceea9c1d6a892c4c2
sha1
7a19579c838fb39e4ba442d383fcd71c05d7da17
sha256
57a373521579451f2542ca240b44d04ecd93a231011056282d783070f72bd974
sha512
d0a3ebdc7e4fd4b4966a6a365fdc0f33f2b5dd0266f787ff803dbf42ece7959207ae9af361f98ad7399e44f2f21b8435d28396bf8f7e63b1004fac078496e2f4
ripemd-160
c8ce6bc429397286dac797fc75ff2109d93f9c2d
Diameter
42804042
Circumference
134472863.89115
Area
1.4389955284643E+15
Volume
4.1063216692131E+22
Surface area
5.755982113857E+15
Circumference
134472863.89115
Perimeter
85608084
Area
458046502884441
Diagonal
30267028.360394
Surface area
2748279017306646
Volume
9.8031208737094E+21
Space diagonal
37069387.756656
Perimeter
64206063
Area
1.9833995380627E+14
Altitude
18534693.878328
Surface area
1.9833995380627E+14
Volume
1.1553088744319E+21
Height
10089009.453465