20181929 is an odd 8-digits composite number following 20181928
and preceding 20181930 . In scientific notation, it is written as 2.0181929 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20131200 positive integers (up to 20181929) that are relatively prime to 20181929.
20181929 has 4 divisors, whose sum is 20232660
The reverse of 20181929 is 92918102
Previous prime number is 401
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred eighty-one thousand nine hundred twenty-nine
Scientific notation
2.0181929 × 10^7
Engineering notation
2.0181929 × 10^6
Prime Factorization
401 × 50329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20181929
Product of the distinct prime numbers
The prime factorization of 20181929 is 401 × 50329.
Since it has a total of 2 prime factors.
6 , 5 , 59 , 92 , 415 , 275 , 3680 , 2798 , 92815 , 49090 , 161123 , 798570 , 2431523 , 8571176 , 40350456 , 94897683 , 568333969 , 358759223 , 827226512 , 6193320980
n×2
40363858
n×3
60545787
n×4
80727716
n×5
100909645
n÷2
10090964.5
n÷3
6727309.6666667
n÷3
5045482.25
n÷5
4036385.8
n2
407310258161041
n3
8.2203067111778E+21
n4
1.6590164640321E+29
n5
3.3482152486928E+36
2 √n
4492.4301886618
3 √n
272.2623307154
4 √n
67.025593534573
5 √n
28.906301941402
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
-20181928
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 20181929 can be divided by 4 positive divisors.
The sum of these divisors (counting 20181929) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111001110101001
3
Ternary
1101222100101212
4
Quaternary
1030333032221
5
Quinary
20131310204
6
Senary
2000322505
8
Octal
114771651
10
Decimal
20181929
12
Duodecimal
6913435
16
Hexadecimal
133f3a9
20
Vigesimal
662eg9
36
Base36
c0kh5
md5
b8f016078239854af4d99ae53e0a0ddb
sha1
f30878b6c3797735a98f35cd9cd03b0c3e816790
sha256
8f34b85b6c88c1a5020cb886d99fac0d38abdb09160c22ab47234e92467624e3
sha512
9307e5d3deb2d00eeaf027a0927e5007cb9065e169f2ab37cf21e1dae4a052951b3034accf9f1c25547a449b2a87f41c2e8e1ca14106c77eb6b683ca87894171
ripemd-160
dc5512e47ec716ced1feffe50fd22518f4f47763
Diameter
40363858
Circumference
126806799.76334
Area
1.2796029147705E+15
Volume
3.4433140232121E+22
Surface area
5.118411659082E+15
Circumference
126806799.76334
Perimeter
80727716
Area
407310258161041
Diagonal
28541557.706651
Surface area
2443861548966246
Volume
8.2203067111778E+21
Space diagonal
34956126.422748
Perimeter
60545787
Area
1.7637051539473E+14
Altitude
17478063.211374
Surface area
1.7637051539473E+14
Volume
9.6877243648452E+20
Height
9513852.5688836