20180129 is an odd 8-digits composite number following 20180128
and preceding 20180130 . In scientific notation, it is written as 2.0180129 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20171076 positive integers (up to 20180129) that are relatively prime to 20180129.
20180129 has 4 divisors, whose sum is 20189184
The reverse of 20180129 is 92108102
Previous prime number is 3967
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred eighty thousand one hundred twenty-nine
Scientific notation
2.0180129 × 10^7
Engineering notation
2.0180129 × 10^6
Prime Factorization
3967 × 5087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180129
Product of the distinct prime numbers
The prime factorization of 20180129 is 3967 × 5087.
Since it has a total of 2 prime factors.
2 , 4 , 68 , 42 , 808 , 620 , 9274 , 6062 , 37620 , 85905 , 942841 , 515379 , 3274362 , 1935428 , 71567582 , 51887077 , 185389531 , 379284628 , 2551667924 , 694014191
n×2
40360258
n×3
60540387
n×4
80720516
n×5
100900645
n÷2
10090064.5
n÷3
6726709.6666667
n÷3
5045032.25
n÷5
4036025.8
n2
407237606456641
n3
8.2181074319462E+21
n4
1.6584246811253E+29
n5
3.3467224001893E+36
2 √n
4492.2298471917
3 √n
272.25423623369
4 √n
67.024099003207
5 √n
28.90578629991
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
-20180128
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 20180129 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180129) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110110010100001
3
Ternary
1101222020221012
4
Quaternary
1030332302201
5
Quinary
20131231004
6
Senary
2000310305
8
Octal
114766241
10
Decimal
20180129
12
Duodecimal
6912395
16
Hexadecimal
133eca1
20
Vigesimal
662a69
36
Base36
c0j35
md5
f4b9875cb3f64933e7149aa2d7a5060e
sha1
edc65aab00448a996c0686d1749ccf0d553cb39e
sha256
df8d054b48ad414c98143531a5fb199bd8c1a8928aa896fbeb2bea1f45a31a9f
sha512
f2987a6f98da7ff723defcc40e8552c6c5663c1f966c6de8d184d29a0ca88d9d925698a8db3a56fd48d141a38a6979c1306b4828a0ea0aa3a0239cda49f9fea8
ripemd-160
29355ed155d828859f43a3664448a03d2917266d
Diameter
40360258
Circumference
126795490.02979
Area
1.2793746727097E+15
Volume
3.4423927912819E+22
Surface area
5.1174986908387E+15
Circumference
126795490.02979
Perimeter
80720516
Area
407237606456641
Diagonal
28539012.122239
Surface area
2443425638739846
Volume
8.2181074319462E+21
Space diagonal
34953008.731294
Perimeter
60540387
Area
1.7633905628391E+14
Altitude
17476504.365647
Surface area
1.7633905628391E+14
Volume
9.6851324894146E+20
Height
9513004.0407462