20115081 is an odd 8-digits composite number following 20115080
and preceding 20115082 . In scientific notation, it is written as 2.0115081 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 32 positive divisors.
There are 11324880 positive integers (up to 20115081) that are relatively prime to 20115081.
20115081 has 32 divisors, whose sum is 34560000
The reverse of 20115081 is 18051102
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred fifteen thousand eighty-one
Scientific notation
2.0115081 × 10^7
Engineering notation
2.0115081 × 10^6
Prime Factorization
3 × 9 × 7 × 71 × 1499
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20115081
Product of the distinct prime numbers
The prime factorization of 20115081 is 3 × 9 × 7 × 71 × 1499.
Since it has a total of 5 prime factors.
9 , 9 , 14 , 25 , 671 , 662 , 2705 , 5917 , 71221 , 38212 , 100027 , 574638 , 2141437 , 5926685 , 97157426 , 99070704 , 158753426 , 128995216 , 3675528057 , 4049089566
n×2
40230162
n×3
60345243
n×4
80460324
n×5
100575405
n÷2
10057540.5
n÷3
6705027
n÷3
5028770.25
n÷5
4023016.2
n2
404616483636561
n3
8.1388933422846E+21
n4
1.6371449883042E+29
n5
3.2931304048482E+36
2 √n
4484.9839464596
3 √n
271.96139608566
4 √n
66.970022744953
5 √n
28.887127424144
1 , 3 , 7 , 9 , 21 , 27 , 63 , 71 , 189 , 213 , 497 , 639 , 1491 , 1499 , 1917 , 4473 , 4497 , 10493 , 13419 , 13491 , 31479 , 40473 , 94437 , 106429 , 283311 , 319287 , 745003 , 957861 , 2235009 , 2873583 , 6705027 , 20115081
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20115080
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20115081 can be divided by 32 positive divisors.
The sum of these divisors (counting 20115081) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101110111010001001
3
Ternary
1101211221201000
4
Quaternary
1030232322021
5
Quinary
20122140311
6
Senary
1555045213
8
Octal
114567211
10
Decimal
20115081
12
Duodecimal
68a0809
16
Hexadecimal
132ee89
20
Vigesimal
65e7e1
36
Base36
bz4w9
md5
d0f274d8c1512b6d4371525415ecb064
sha1
02ca6ff5074bbc4be3adc6a4d07a34212b73ced3
sha256
df0b830d2f2100eec62785e0c2908b17e5269c7ecba171ec7e1a1ae44273e6ff
sha512
0788e66418c20707fbdc69e6cb37af229724332b7b5c65768d180d76159319fc8fc35f11d27c2d70c25d81191c78b0e8b891d4df090ad6709875dc4739d8845d
ripemd-160
3d5af8ca429061d62c983c8b98ee48d1ce419819
Diameter
40230162
Circumference
126386781.39193
Area
1.271140172514E+15
Volume
3.4092116709963E+22
Surface area
5.0845606900558E+15
Circumference
126386781.39193
Perimeter
80460324
Area
404616483636561
Diagonal
28447020.358433
Surface area
2427698901819366
Volume
8.1388933422846E+21
Space diagonal
34840342.290363
Perimeter
60345243
Area
1.752040768096E+14
Altitude
17420171.145182
Surface area
1.752040768096E+14
Volume
9.5917777894725E+20
Height
9482340.1194778