21152561 is an odd 8-digits prime number following 21152560
and preceding 21152562 . In scientific notation, it is written as 2.1152561 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 21152560 positive integers (up to 21152561) that are relatively prime to 21152561.
21152561 has 2 divisors, whose sum is 21152562
The reverse of 21152561 is 16525112
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred fifty-two thousand five hundred sixty-one
Scientific notation
2.1152561 × 10^7
Engineering notation
2.1152561 × 10^6
Prime Factorization
21152561
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21152561
Product of the distinct prime numbers
The prime factorization of 21152561 is 21152561.
Since it has a total of 1 prime factors.
3 , 2 , 60 , 51 , 100 , 989 , 2660 , 2607 , 66278 , 99433 , 787816 , 942863 , 9797152 , 3811007 , 41423795 , 85614024 , 25618928 , 679681075 , 9066075430 , 8575379423
n×2
42305122
n×3
63457683
n×4
84610244
n×5
105762805
n÷2
10576280.5
n÷3
7050853.6666667
n÷3
5288140.25
n÷5
4230512.2
n2
447430836858721
n3
9.4643080699351E+21
n4
2.001943537721E+29
n5
4.2346232800198E+36
2 √n
4599.1913419644
3 √n
276.55890821301
4 √n
67.817338063097
5 √n
29.179146953397
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21152562
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10576281
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4599.1914506791
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999054488
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21152561 can be divided by 2 positive divisors.
The sum of these divisors (counting 21152561) is 21152562, the average is 10576281.
Base
System
Value
2
Binary
1010000101100001100110001
3
Ternary
1110210122212012
4
Quaternary
1100230030301
5
Quinary
20403340221
6
Senary
2033212305
8
Octal
120541461
10
Decimal
21152561
12
Duodecimal
7101095
16
Hexadecimal
142c331
20
Vigesimal
6c4181
36
Base36
cldf5
md5
6cf53a888de8b5a7d00ae03d7a2cf68d
sha1
6d7a7fb17e0592d6f8d8920ee281abd78239ddbd
sha256
a6c1aa94e5343b81f54a7c1a475d5c6d0fdbb443169d908943a04cac24e554dd
sha512
d8dfcaf971edcf0d2505d2e6debcc7f76d97f1e79ab0611dcc67aa5e9b06e2e9b69a8a3d83ab01f1205eb96c3adebd898dc9782400ac75e9b605ec7e8670683e
ripemd-160
85abc7e6143bf1ec1d80376352e78bf25631fe72
Diameter
42305122
Circumference
132905460.48442
Area
1.4056454300649E+15
Volume
3.9644000938425E+22
Surface area
5.6225817202596E+15
Circumference
132905460.48442
Perimeter
84610244
Area
447430836858721
Diagonal
29914238.645124
Surface area
2684585021152326
Volume
9.4643080699351E+21
Space diagonal
36637310.3622
Perimeter
63457683
Area
1.9374323557809E+14
Altitude
18318655.1811
Surface area
1.9374323557809E+14
Volume
1.1153794025816E+21
Height
9971412.8817081