21002021 is an odd 8-digits composite number following 21002020
and preceding 21002022 . In scientific notation, it is written as 2.1002021 × 10^7.
The sum of its digits is 8. It has a total of 3 prime factors and 8 positive divisors.
There are 19470528 positive integers (up to 21002021) that are relatively prime to 21002021.
21002021 has 8 divisors, whose sum is 22570560
The reverse of 21002021 is 12020012
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 8
Digital Root 8
Name
twenty-one million two thousand twenty-one
Scientific notation
2.1002021 × 10^7
Engineering notation
2.1002021 × 10^6
Prime Factorization
17 × 67 × 18439
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21002021
Product of the distinct prime numbers
The prime factorization of 21002021 is 17 × 67 × 18439.
Since it has a total of 3 prime factors.
2 , 3 , 64 , 45 , 924 , 901 , 6926 , 267 , 46869 , 20450 , 839790 , 856599 , 7249722 , 5706608 , 32225240 , 36413149 , 912100007 , 15883102 , 9648679551 , 3418028883
n×2
42004042
n×3
63006063
n×4
84008084
n×5
105010105
n÷2
10501010.5
n÷3
7000673.6666667
n÷3
5250505.25
n÷5
4200404.2
n2
441084886084441
n3
9.263674040328E+21
n4
1.9455587673212E+29
n5
4.0860666088015E+36
2 √n
4582.7961988288
3 √n
275.9012678078
4 √n
67.696352921179
5 √n
29.137495380792
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
-21002020
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 21002021 can be divided by 8 positive divisors.
The sum of these divisors (counting 21002021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111011100100101
3
Ternary
1110112000100122
4
Quaternary
1100013130211
5
Quinary
20334031041
6
Senary
2030051325
8
Octal
120073445
10
Decimal
21002021
12
Duodecimal
7049b45
16
Hexadecimal
1407725
20
Vigesimal
6b5511
36
Base36
ci59h
md5
1acaae8359619d200f3f633b9bb47913
sha1
23200d2ae9160b93ba14a3ff4a151240467d2d2c
sha256
5171c77e49e24b12e75b61608b904af7d0acbe2f811c8181558c7ca22cec1ea3
sha512
657876ad3ac3985b29d7b53d7c49270ee31a8fbbe1e93981779b031ced86e439150d2fbbc9671e89e776485a674b27bd3fa9c001d6cb614a8dc90381dd563a12
ripemd-160
8bc7c9d38e2716f7b7a455b889fd3a3474285eb1
Diameter
42004042
Circumference
131959589.76828
Area
1.3857090377324E+15
Volume
3.880358708046E+22
Surface area
5.5428361509295E+15
Circumference
131959589.76828
Perimeter
84008084
Area
441084886084441
Diagonal
29701342.935445
Surface area
2646509316506646
Volume
9.263674040328E+21
Space diagonal
36376567.433629
Perimeter
63006063
Area
1.9099535828725E+14
Altitude
18188283.716814
Surface area
1.9099535828725E+14
Volume
1.0917344554363E+21
Height
9900447.6451482