20218521 is an odd 8-digits composite number following 20218520
and preceding 20218522 . In scientific notation, it is written as 2.0218521 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13440752 positive integers (up to 20218521) that are relatively prime to 20218521.
20218521 has 8 divisors, whose sum is 27034560
The reverse of 20218521 is 12581202
Previous prime number is 359
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million two hundred eighteen thousand five hundred twenty-one
Scientific notation
2.0218521 × 10^7
Engineering notation
2.0218521 × 10^6
Prime Factorization
3 × 359 × 18773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218521
Product of the distinct prime numbers
The prime factorization of 20218521 is 3 × 359 × 18773.
Since it has a total of 3 prime factors.
1 , 7 , 46 , 26 , 685 , 626 , 1227 , 2683 , 52086 , 17225 , 921997 , 293585 , 8660444 , 1232188 , 8594551 , 91219267 , 170021594 , 217807104 , 5472453217 , 3735417673
n×2
40437042
n×3
60655563
n×4
80874084
n×5
101092605
n÷2
10109260.5
n÷3
6739507
n÷3
5054630.25
n÷5
4043704.2
n2
408788591427441
n3
8.2651007203361E+21
n4
1.6710811248123E+29
n5
3.3786788814721E+36
2 √n
4496.5009729789
3 √n
272.42677829558
4 √n
67.055954045699
5 √n
28.916776392245
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
-20218520
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 20218521 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218521) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000001010011001
3
Ternary
1102001012121010
4
Quaternary
1031020022121
5
Quinary
20133443041
6
Senary
2001204133
8
Octal
115101231
10
Decimal
20218521
12
Duodecimal
6930649
16
Hexadecimal
1348299
20
Vigesimal
667661
36
Base36
c1cpl
md5
932e977fe4aa64ee3868d6704e8f1664
sha1
1f0310c0a654d9597a7ac69c1293bf20bb0e2fd5
sha256
c6cccbc1ba9bd5472662232b80a5d988d5216acb8f521a49433dbcb5976e2074
sha512
9a9ea26fa432ce036c3953799fb5762a930e6fd99803913ba2eb5a3c4f40fee04d9cfaebaec080aef76a141ca6ac1a0dc96c3094ae8d2220f797207b217b0d36
ripemd-160
804bcee3933a56424e92cda9a13d0992d266ecdf
Diameter
40437042
Circumference
127036714.0801
Area
1.2842472356998E+15
Volume
3.4620772938917E+22
Surface area
5.1369889427991E+15
Circumference
127036714.0801
Perimeter
80874084
Area
408788591427441
Diagonal
28593306.609325
Surface area
2452731548564646
Volume
8.2651007203361E+21
Space diagonal
35019505.625898
Perimeter
60655563
Area
1.7701065247671E+14
Altitude
17509752.812949
Surface area
1.7701065247671E+14
Volume
9.7405146108992E+20
Height
9531102.2031084