20137985 is an odd 8-digits composite number following 20137984
and preceding 20137986 . In scientific notation, it is written as 2.0137985 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 13808880 positive integers (up to 20137985) that are relatively prime to 20137985.
20137985 has 8 divisors, whose sum is 27617856
The reverse of 20137985 is 58973102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred thirty-seven thousand nine hundred eighty-five
Scientific notation
2.0137985 × 10^7
Engineering notation
2.0137985 × 10^6
Prime Factorization
5 × 7 × 575371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20137985
Product of the distinct prime numbers
The prime factorization of 20137985 is 5 × 7 × 575371.
Since it has a total of 3 prime factors.
4 , 9 , 47 , 64 , 144 , 909 , 8329 , 7622 , 57773 , 82165 , 156474 , 532226 , 4222045 , 3589874 , 33353854 , 74060670 , 362659350 , 215797407 , 1919196930 , 9686835253
n×2
40275970
n×3
60413955
n×4
80551940
n×5
100689925
n÷2
10068992.5
n÷3
6712661.6666667
n÷3
5034496.25
n÷5
4027597
n2
405538439860225
n3
8.1667270188286E+21
n4
1.6446142620427E+29
n5
3.3119217339801E+36
2 √n
4487.536629377
3 √n
272.0645797135
4 √n
66.989078433555
5 √n
28.893702884878
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
-20137984
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 20137985 can be divided by 8 positive divisors.
The sum of these divisors (counting 20137985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110100100000000001
3
Ternary
1101220010010022
4
Quaternary
1030310200001
5
Quinary
20123403420
6
Senary
1555343225
8
Octal
114644001
10
Decimal
20137985
12
Duodecimal
68b1b15
16
Hexadecimal
1334801
20
Vigesimal
65h4j5
36
Base36
bzmkh
md5
ffd08f39d263ce5d315ff8c2965af61f
sha1
a59aed40bf5f8433d1057d62a4ec5188a47e2ae2
sha256
c981a9a7c97bc0c9539d6a49743b51a656bcc1726cde537be566735dacefe5c2
sha512
b9bf16a4cb6cfe0a67bf5da723a56bddff7ec4ee06d5c1a835a3bc17c62fc564122d150e85d34fa6061232b76ce3868a1027996bfdf97e5012b2fde849693632
ripemd-160
31d873daae7c850460aa90517fab94b472b075ad
Diameter
40275970
Circumference
126530691.4682
Area
1.2740365834131E+15
Volume
3.4208706141634E+22
Surface area
5.0961463336526E+15
Circumference
126530691.4682
Perimeter
80551940
Area
405538439860225
Diagonal
28479411.505866
Surface area
2433230639161350
Volume
8.1667270188286E+21
Space diagonal
34880013.18206
Perimeter
60413955
Area
1.7560329556503E+14
Altitude
17440006.59103
Surface area
1.7560329556503E+14
Volume
9.6245800918552E+20
Height
9493137.168622