20180923 is an odd 8-digits composite number following 20180922
and preceding 20180924 . In scientific notation, it is written as 2.0180923 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 17029440 positive integers (up to 20180923) that are relatively prime to 20180923.
20180923 has 12 divisors, whose sum is 23427408
The reverse of 20180923 is 32908102
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty thousand nine hundred twenty-three
Scientific notation
2.0180923 × 10^7
Engineering notation
2.0180923 × 10^6
Prime Factorization
7 × 73 × 73 × 541
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
276451
Product of the distinct prime numbers
The prime factorization of 20180923 is 7 × 73 × 73 × 541.
Since it has a total of 4 prime factors.
2 , 7 , 13 , 69 , 685 , 276 , 3282 , 293 , 86783 , 86839 , 100726 , 439934 , 4312983 , 6051756 , 78314602 , 14720408 , 126070307 , 147573614 , 9074537521 , 4645717040
n×2
40361846
n×3
60542769
n×4
80723692
n×5
100904615
n÷2
10090461.5
n÷3
6726974.3333333
n÷3
5045230.75
n÷5
4036184.6
n2
407269653131929
n3
8.2190775100922E+21
n4
1.658685703622E+29
n5
3.3473808465997E+36
2 √n
4492.3182211415
3 √n
272.25780685884
4 √n
67.024758269922
5 √n
28.906013759637
1 , 7 , 73 , 511 , 541 , 3787 , 5329 , 37303 , 39493 , 276451 , 2882989 , 20180923
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
-20180922
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 20180923 can be divided by 12 positive divisors.
The sum of these divisors (counting 20180923) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111110111110111011
3
Ternary
1101222022000121
4
Quaternary
1030332332323
5
Quinary
20131242143
6
Senary
2000314111
8
Octal
114767673
10
Decimal
20180923
12
Duodecimal
6912937
16
Hexadecimal
133efbb
20
Vigesimal
662c63
36
Base36
c0jp7
md5
4eab9a25e8fe23bb789f89b4a5ef7049
sha1
43c44ab4e7cc0688536d3fbea145fc76c91a130e
sha256
975cfafd6ea68725b3eb8a52ee908d47a5030dcecbc36149bd7b49ebd5146f5c
sha512
1a8c18a815091f3edd619476b224de2357803d82ccdb9a2f1c29c0e759748204dbc1c34a7c75205fb65e0f433a3cc6b2a1e72b730f9feaf3fe9b2fd51a1b7689
ripemd-160
0e74025395e606c75dc04bc1d98a6651c8dbb7f5
Diameter
40361846
Circumference
126800478.87892
Area
1.2794753503093E+15
Volume
3.4427991366654E+22
Surface area
5.1179014012373E+15
Circumference
126800478.87892
Perimeter
80723692
Area
407269653131929
Diagonal
28540135.007807
Surface area
2443617918791574
Volume
8.2190775100922E+21
Space diagonal
34954383.979635
Perimeter
60542769
Area
1.7635293290136E+14
Altitude
17477191.989818
Surface area
1.7635293290136E+14
Volume
9.6862757374734E+20
Height
9513378.3359357