20180871 is an odd 8-digits composite number following 20180870
and preceding 20180872 . In scientific notation, it is written as 2.0180871 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13453908 positive integers (up to 20180871) that are relatively prime to 20180871.
20180871 has 4 divisors, whose sum is 22423200
The reverse of 20180871 is 17808102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty thousand eight hundred seventy-one
Scientific notation
2.0180871 × 10^7
Engineering notation
2.0180871 × 10^6
Prime Factorization
9 × 2242319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180871
Product of the distinct prime numbers
The prime factorization of 20180871 is 9 × 2242319.
Since it has a total of 2 prime factors.
10 , 9 , 17 , 38 , 764 , 930 , 189 , 898 , 51139 , 59603 , 79805 , 630723 , 7535740 , 5880971 , 56215491 , 43350211 , 693930363 , 875754972 , 1712210081 , 6457336811
n×2
40361742
n×3
60542613
n×4
80723484
n×5
100904355
n÷2
10090435.5
n÷3
6726957
n÷3
5045217.75
n÷5
4036174.2
n2
407267554318641
n3
8.21901397619E+21
n4
1.6586686080069E+29
n5
3.3473377209936E+36
2 √n
4492.3124334801
3 √n
272.25757301724
4 √n
67.02471509436
5 √n
28.905998863249
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20180870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20180871 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111110000111
3
Ternary
1101222021221200
4
Quaternary
1030332332013
5
Quinary
20131241441
6
Senary
2000313543
8
Octal
114767607
10
Decimal
20180871
12
Duodecimal
69128b3
16
Hexadecimal
133ef87
20
Vigesimal
662c3b
36
Base36
c0jnr
md5
1e49259293f17594bce3b82864c33236
sha1
c45796de2b57587d67f45286c8da60c8bb573647
sha256
696990670b8b83b0ec5565717ae4e013a4927c73c32311236aa55ed25b28e9e5
sha512
8bf6b314add2e7f1c48437c6e23fd2aa5c51ae580cd9478cf75d3e99abd880afdd3a6222421b3ea3491b52ed0728cc3d0c55a7d5e118d2ec489b10871f42dbd7
ripemd-160
92777a46d70c3a20e79c35093a421db1033b103e
Diameter
40361742
Circumference
126800152.15329
Area
1.2794687566929E+15
Volume
3.4427725236467E+22
Surface area
5.1178750267717E+15
Circumference
126800152.15329
Perimeter
80723484
Area
407267554318641
Diagonal
28540061.468702
Surface area
2443605325911846
Volume
8.21901397619E+21
Space diagonal
34954293.912993
Perimeter
60542613
Area
1.7635202408855E+14
Altitude
17477146.956497
Surface area
1.7635202408855E+14
Volume
9.6862008620516E+20
Height
9513353.8229006