21372521 is an odd 8-digits composite number following 21372520
and preceding 21372522 . In scientific notation, it is written as 2.1372521 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20851200 positive integers (up to 21372521) that are relatively prime to 21372521.
21372521 has 4 divisors, whose sum is 21893844
The reverse of 21372521 is 12527312
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million three hundred seventy-two thousand five hundred twenty-one
Scientific notation
2.1372521 × 10^7
Engineering notation
2.1372521 × 10^6
Prime Factorization
41 × 521281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21372521
Product of the distinct prime numbers
The prime factorization of 21372521 is 41 × 521281.
Since it has a total of 2 prime factors.
1 , 3 , 69 , 3 , 233 , 570 , 1486 , 4426 , 11402 , 31484 , 245792 , 517282 , 4452850 , 2736154 , 40676689 , 46445387 , 818983879 , 231909200 , 9794487007 , 6099271293
n×2
42745042
n×3
64117563
n×4
85490084
n×5
106862605
n÷2
10686260.5
n÷3
7124173.6666667
n÷3
5343130.25
n÷5
4274504.2
n2
456784653895441
n3
9.762639607858E+21
n4
2.0865222003438E+29
n5
4.4594239543814E+36
2 √n
4623.0423965177
3 √n
277.51422592979
4 √n
67.992958433338
5 √n
29.239581374181
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21372520
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21372521 can be divided by 4 positive divisors.
The sum of these divisors (counting 21372521) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100001111001101001
3
Ternary
1111012211120212
4
Quaternary
1101201321221
5
Quinary
20432410041
6
Senary
2042030505
8
Octal
121417151
10
Decimal
21372521
12
Duodecimal
71a8435
16
Hexadecimal
1461e69
20
Vigesimal
6dbb61
36
Base36
cq355
md5
88b8ed3e7aebe68dcf38a1ee6d0d5fcc
sha1
390b6bc4e28ee31b342a0ebffe5e04f53f7244fb
sha256
0556e278ed5a39ee4d32014546024c4a8a5322cf06942d46c512ca77c3072541
sha512
a50a7d85936e970eeddcb94f0a585ec344c16930d7cfe40c09d3336c37c193b2a0d62d39d7e8545af957aabc4bbd6e2d3da5458697653787419337082737ff4e
ripemd-160
4336ac3158b6f09550ba245ceb392355682ac384
Diameter
42745042
Circumference
134287509.92459
Area
1.4350313129505E+15
Volume
4.0893649162255E+22
Surface area
5.7401252518019E+15
Circumference
134287509.92459
Perimeter
85490084
Area
456784653895441
Diagonal
30225309.060304
Surface area
2740707923372646
Volume
9.762639607858E+21
Space diagonal
37018292.257833
Perimeter
64117563
Area
1.9779355716617E+14
Altitude
18509146.128916
Surface area
1.9779355716617E+14
Volume
1.1505381114995E+21
Height
10075103.020101