21002521 is an odd 8-digits prime number following 21002520
and preceding 21002522 . In scientific notation, it is written as 2.1002521 × 10^7.
The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors.
There are 21002520 positive integers (up to 21002521) that are relatively prime to 21002521.
21002521 has 2 divisors, whose sum is 21002522
The reverse of 21002521 is 12520012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million two thousand five hundred twenty-one
Scientific notation
2.1002521 × 10^7
Engineering notation
2.1002521 × 10^6
Prime Factorization
21002521
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21002521
Product of the distinct prime numbers
The prime factorization of 21002521 is 21002521.
Since it has a total of 1 prime factors.
6 , 9 , 24 , 57 , 86 , 498 , 8920 , 229 , 93050 , 40847 , 971844 , 632561 , 633341 , 2593687 , 75507383 , 1023632 , 872016521 , 783862991 , 8570640887 , 3711344639
n×2
42005042
n×3
63007563
n×4
84010084
n×5
105012605
n÷2
10501260.5
n÷3
7000840.3333333
n÷3
5250630.25
n÷5
4200504.2
n2
441105888355441
n3
9.2643356834088E+21
n4
1.9457440474184E+29
n5
4.0865530216531E+36
2 √n
4582.8507503518
3 √n
275.90345727231
4 √n
67.696755833288
5 √n
29.137634116097
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21002522
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10501261
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4582.8508594542
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047733
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21002521 can be divided by 2 positive divisors.
The sum of these divisors (counting 21002521) is 21002522, the average is 10501261.
Base
System
Value
2
Binary
1010000000111100100011001
3
Ternary
1110112001001011
4
Quaternary
1100013210121
5
Quinary
20334040041
6
Senary
2030053521
8
Octal
120074431
10
Decimal
21002521
12
Duodecimal
704a2a1
16
Hexadecimal
1407919
20
Vigesimal
6b5661
36
Base36
ci5nd
md5
be304f8916c891563ea0497e64630aef
sha1
ddcaa49e3db056548e32e36f8890b134c20cb7d4
sha256
8c95075c27509937b364b4f53a82a2954b5b2444a757949550f29dc12274b154
sha512
a3b82c755f5fc0b7a55cc42b4ffb3435af02e6876f7907c053b8e674941ffb74246700b804b5ec1692ef42922cb3963e855c9d48fc9bc9b12ab11e4972c4c215
ripemd-160
4384af1cac14e3d67a5120668e1c97fd5eb51569
Diameter
42005042
Circumference
131962731.36093
Area
1.3857750183127E+15
Volume
3.8806358564516E+22
Surface area
5.5431000732506E+15
Circumference
131962731.36093
Perimeter
84010084
Area
441105888355441
Diagonal
29702050.042226
Surface area
2646635330132646
Volume
9.2643356834088E+21
Space diagonal
36377433.459032
Perimeter
63007563
Area
1.9100445253736E+14
Altitude
18188716.729516
Surface area
1.9100445253736E+14
Volume
1.0918124308211E+21
Height
9900683.3474086