20105855 is an odd 8-digits composite number following 20105854
and preceding 20105856 . In scientific notation, it is written as 2.0105855 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 12533280 positive integers (up to 20105855) that are relatively prime to 20105855.
20105855 has 8 divisors, whose sum is 23396352
The reverse of 20105855 is 55850102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred five thousand eight hundred fifty-five
Scientific notation
2.0105855 × 10^7
Engineering notation
2.0105855 × 10^6
Prime Factorization
55 × 7 × 52223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20105855
Product of the distinct prime numbers
The prime factorization of 20105855 is 55 × 7 × 52223.
Since it has a total of 3 prime factors.
8 , 7 , 48 , 52 , 559 , 212 , 6688 , 339 , 12265 , 63213 , 375604 , 188723 , 8672026 , 6474354 , 99439932 , 77199530 , 711962613 , 713205411 , 8524309446 , 625258511
n×2
40211710
n×3
60317565
n×4
80423420
n×5
100529275
n÷2
10052927.5
n÷3
6701951.6666667
n÷3
5026463.75
n÷5
4021171
n2
404245405281025
n3
8.1276995029965E+21
n4
1.6341434769082E+29
n5
3.2855851795912E+36
2 √n
4483.9552852365
3 √n
271.9198103794
4 √n
66.962342292041
5 √n
28.884477059011
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
-20105854
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 20105855 can be divided by 8 positive divisors.
The sum of these divisors (counting 20105855) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101100101001111111
3
Ternary
1101211111001022
4
Quaternary
1030230221333
5
Quinary
20121341410
6
Senary
1554534355
8
Octal
114545177
10
Decimal
20105855
12
Duodecimal
68973bb
16
Hexadecimal
132ca7f
20
Vigesimal
65d4cf
36
Base36
byxrz
md5
20da9b56ada556e7abdefee0c64cedbc
sha1
51d1aa0ff07f8ebebb44d43c9b1cd57dcd0e44f2
sha256
41c021e15ce16a2b1097f05257fb90c66f7ff1c5736b910b55df783b18faccf2
sha512
51fe3655a66586eeda971f646c8894e731937cbb774d6a2a10fdc4c6f05cd3f3bc9ee6c31fb2d0892006849b184545cdf1aa63e2d0d8121c2030aee05a83dd19
ripemd-160
e7b830abf8856f275a0cbf36244974b5fa0526a9
Diameter
40211710
Circumference
126328812.72428
Area
1.2699743954783E+15
Volume
3.4045228065599E+22
Surface area
5.0798975819132E+15
Circumference
126328812.72428
Perimeter
80423420
Area
404245405281025
Diagonal
28433972.824107
Surface area
2425472431686150
Volume
8.1276995029965E+21
Space diagonal
34824362.389613
Perimeter
60317565
Area
1.7504339516825E+14
Altitude
17412181.194806
Surface area
1.7504339516825E+14
Volume
9.578585723359E+20
Height
9477990.941369