20115621 is an odd 8-digits composite number following 20115620
and preceding 20115622 . In scientific notation, it is written as 2.0115621 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors.
There are 12976200 positive integers (up to 20115621) that are relatively prime to 20115621.
20115621 has 12 divisors, whose sum is 23330944
The reverse of 20115621 is 12651102
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred fifteen thousand six hundred twenty-one
Scientific notation
2.0115621 × 10^7
Engineering notation
2.0115621 × 10^6
Prime Factorization
9 × 9 × 31 × 8011
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2235069
Product of the distinct prime numbers
The prime factorization of 20115621 is 9 × 9 × 31 × 8011.
Since it has a total of 4 prime factors.
10 , 8 , 16 , 37 , 181 , 425 , 2012 , 5805 , 25703 , 43345 , 962694 , 240267 , 8924235 , 3530188 , 7850760 , 83566050 , 858086930 , 942201830 , 5310855148 , 6455853197
n×2
40231242
n×3
60346863
n×4
80462484
n×5
100578105
n÷2
10057810.5
n÷3
6705207
n÷3
5028905.25
n÷5
4023124.2
n2
404638208215641
n3
8.1395488385849E+21
n4
1.6373207954796E+29
n5
3.2935724577287E+36
2 √n
4485.0441469399
3 √n
271.9638297131
4 √n
66.970472201859
5 √n
28.887282520525
1 , 9 , 31 , 81 , 279 , 2511 , 8011 , 72099 , 248341 , 648891 , 2235069 , 20115621
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20115620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20115621 can be divided by 12 positive divisors.
The sum of these divisors (counting 20115621) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100101111000010100101
3
Ternary
1101211222110000
4
Quaternary
1030233002211
5
Quinary
20122144441
6
Senary
1555051513
8
Octal
114570245
10
Decimal
20115621
12
Duodecimal
68a0b99
16
Hexadecimal
132f0a5
20
Vigesimal
65e911
36
Base36
bz5b9
md5
71b2236f6c5635f7eb3b8ebd94a98f86
sha1
6f6f2fc9579a5c6790352bb12429cbaf187cccd5
sha256
e001d86e02c560103cc819fe815e89e7e5d93885066467dbf04e8a92423586b2
sha512
709aac863ae5e273832178995da25466939af8916774ba53781ba8ae8b6cc295fbe85e0f6160622553f22fbc937e08c350cb60d32ca93a607ddf9d65964fbafb
ripemd-160
86868f572c8359ecea78b69df97db2097349521c
Diameter
40231242
Circumference
126390174.31199
Area
1.271208422292E+15
Volume
3.4094862446445E+22
Surface area
5.084833689168E+15
Circumference
126390174.31199
Perimeter
80462484
Area
404638208215641
Diagonal
28447784.033757
Surface area
2427829249293846
Volume
8.1395488385849E+21
Space diagonal
34841277.597799
Perimeter
60346863
Area
1.7521348382828E+14
Altitude
17420638.7989
Surface area
1.7521348382828E+14
Volume
9.5925502992708E+20
Height
9482594.677919