20218131 is an odd 8-digits composite number following 20218130
and preceding 20218132 . In scientific notation, it is written as 2.0218131 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13191696 positive integers (up to 20218131) that are relatively prime to 20218131.
20218131 has 8 divisors, whose sum is 27149264
The reverse of 20218131 is 13181202
Previous prime number is 141
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred eighteen thousand one hundred thirty-one
Scientific notation
2.0218131 × 10^7
Engineering notation
2.0218131 × 10^6
Prime Factorization
3 × 141 × 47797
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218131
Product of the distinct prime numbers
The prime factorization of 20218131 is 3 × 141 × 47797.
Since it has a total of 3 prime factors.
1 , 7 , 27 , 77 , 96 , 26 , 5733 , 6662 , 40394 , 61736 , 925209 , 150942 , 7546413 , 4347512 , 26133429 , 43350984 , 381274260 , 784262776 , 6754481212 , 9677987329
n×2
40436262
n×3
60654393
n×4
80872524
n×5
101090655
n÷2
10109065.5
n÷3
6739377
n÷3
5054532.75
n÷5
4043626.2
n2
408772821133161
n3
8.2646224469098E+21
n4
1.6709521929716E+29
n5
3.3783530332238E+36
2 √n
4496.4576057159
3 √n
272.42502664872
4 √n
67.055630678682
5 √n
28.916664834829
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
-20218130
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 20218131 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218131) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000000100010011
3
Ternary
1102001012001200
4
Quaternary
1031020010103
5
Quinary
20133440011
6
Senary
2001202243
8
Octal
115100423
10
Decimal
20218131
12
Duodecimal
6930383
16
Hexadecimal
1348113
20
Vigesimal
66756b
36
Base36
c1cer
md5
0a3ae1bf229bd65a59bd338a6d4fc927
sha1
c56016f44794a18e0d90d03d5212a22f0ea6bff2
sha256
ee89bc43c59a3ccaadcaf7576fe0b3d3affbf501081b2d6d30772ba8cc5fe8a6
sha512
881580eec0651f7f3122267db5fdceccedc0c838799b651625a5fa96eaee9c59ffcf907e04007777d1a8022f6a1214728f24bc3b153193361de5a2cc3cea5e63
ripemd-160
594b42f42bfa1f4b299c3c610b5db2213683083b
Diameter
40436262
Circumference
127034263.63783
Area
1.2841976918591E+15
Volume
3.4618769551874E+22
Surface area
5.1367907674365E+15
Circumference
127034263.63783
Perimeter
80872524
Area
408772821133161
Diagonal
28592755.066036
Surface area
2452636926798966
Volume
8.2646224469098E+21
Space diagonal
35018830.126083
Perimeter
60654393
Area
1.7700382373897E+14
Altitude
17509415.063042
Surface area
1.7700382373897E+14
Volume
9.7399509602608E+20
Height
9530918.3553453