20185139 is an odd 8-digits composite number following 20185138
and preceding 20185140 . In scientific notation, it is written as 2.0185139 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 18315936 positive integers (up to 20185139) that are relatively prime to 20185139.
20185139 has 8 divisors, whose sum is 22107120
The reverse of 20185139 is 93158102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred eighty-five thousand one hundred thirty-nine
Scientific notation
2.0185139 × 10^7
Engineering notation
2.0185139 × 10^6
Prime Factorization
13 × 59 × 26317
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20185139
Product of the distinct prime numbers
The prime factorization of 20185139 is 13 × 59 × 26317.
Since it has a total of 3 prime factors.
3 , 1 , 81 , 6 , 15 , 739 , 4968 , 5226 , 84465 , 28234 , 175955 , 846088 , 2317345 , 8431544 , 46191016 , 80252528 , 942875191 , 1572727 , 9392877258 , 5732643346
n×2
40370278
n×3
60555417
n×4
80740556
n×5
100925695
n÷2
10092569.5
n÷3
6728379.6666667
n÷3
5046284.75
n÷5
4037027.8
n2
407439836449321
n3
8.2242297328668E+21
n4
1.6600722032585E+29
n5
3.3508788172809E+36
2 √n
4492.7874421121
3 √n
272.27676468007
4 √n
67.028258534085
5 √n
28.907221410759
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
-20185138
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 20185139 can be divided by 8 positive divisors.
The sum of these divisors (counting 20185139) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000000000110011
3
Ternary
1101222111210202
4
Quaternary
1031000000303
5
Quinary
20131411024
6
Senary
2000345415
8
Octal
115000063
10
Decimal
20185139
12
Duodecimal
691526b
16
Hexadecimal
1340033
20
Vigesimal
6632gj
36
Base36
c0myb
md5
eb9ecb56613ab6435facfb2cfd747157
sha1
ac7caecd461f03227854c971417d71a5f139f677
sha256
f513c4427018805c72dad78caae24b06d7b6dfe5e71b823cf8174178df539499
sha512
f497462dc7eaa007b7449f35d2555483fc7224f0eb72870787a31094a891d2cc1778eb6ce9bb391b2f650e7594287ff5bf2d73155be86ce09095abc57e31af80
ripemd-160
1b738cab593d852b523289a41f614beeb32c49b6
Diameter
40370278
Circumference
126826968.78818
Area
1.280009996969E+15
Volume
3.4449572946945E+22
Surface area
5.1200399878761E+15
Circumference
126826968.78818
Perimeter
80740556
Area
407439836449321
Diagonal
28546097.332186
Surface area
2444639018695926
Volume
8.2242297328668E+21
Space diagonal
34961686.30584
Perimeter
60555417
Area
1.7642662443944E+14
Altitude
17480843.15292
Surface area
1.7642662443944E+14
Volume
9.6923476902436E+20
Height
9515365.7773954