20008639 is an odd 8-digits composite number following 20008638
and preceding 20008640 . In scientific notation, it is written as 2.0008639 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17129880 positive integers (up to 20008639) that are relatively prime to 20008639.
20008639 has 8 divisors, whose sum is 22894208
The reverse of 20008639 is 93680002
Previous prime number is 1531
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight thousand six hundred thirty-nine
Scientific notation
2.0008639 × 10^7
Engineering notation
2.0008639 × 10^6
Prime Factorization
7 × 1531 × 1867
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20008639
Product of the distinct prime numbers
The prime factorization of 20008639 is 7 × 1531 × 1867.
Since it has a total of 3 prime factors.
10 , 3 , 34 , 54 , 939 , 358 , 4779 , 5315 , 77176 , 94109 , 337135 , 205690 , 2733280 , 9517768 , 77380922 , 67920848 , 788747045 , 487799635 , 500781466 , 6272486238
n×2
40017278
n×3
60025917
n×4
80034556
n×5
100043195
n÷2
10004319.5
n÷3
6669546.3333333
n÷3
5002159.75
n÷5
4001727.8
n2
400345634632321
n3
8.010371278584E+21
n4
1.6027662716916E+29
n5
3.2069171731652E+36
2 √n
4473.1017202831
3 √n
271.48083912318
4 √n
66.881250887548
5 √n
28.856490384465
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
-20008638
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 20008639 can be divided by 8 positive divisors.
The sum of these divisors (counting 20008639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010100111010111111
3
Ternary
1101122112200201
4
Quaternary
1030110322333
5
Quinary
20110234024
6
Senary
1552504331
8
Octal
114247277
10
Decimal
20008639
12
Duodecimal
684b0a7
16
Hexadecimal
1314ebf
20
Vigesimal
6511bj
36
Base36
bwurj
md5
8f81516eac88c29a369a2863e64e0320
sha1
58708782ed3ba846cd26c23819cfb05bdac3c8a7
sha256
7a11fc2ec30fd6e21619c3323cf704b3388ed5d167aca61c1647006902e22b43
sha512
226cc224b8e958ec796019b78602c0459a8b48f9caa8bbe11e2719c4e54523e881ad9820fffda9f7a1e357ee4de3e16075400441bd6767dc49b337de2415e8da
ripemd-160
b4221a7ce3137f1fd543124e033ebb284b02d0e3
Diameter
40017278
Circumference
125717986.58146
Area
1.2577229046576E+15
Volume
3.3553764748435E+22
Surface area
5.0308916186306E+15
Circumference
125717986.58146
Perimeter
80034556
Area
400345634632321
Diagonal
28296488.638427
Surface area
2402073807793926
Volume
8.010371278584E+21
Space diagonal
34655979.338304
Perimeter
60025917
Area
1.733547449429E+14
Altitude
17327989.669152
Surface area
1.733547449429E+14
Volume
9.4403130848478E+20
Height
9432162.8794757