20731386 is an even 8-digits composite number following 20731385
and preceding 20731387 . In scientific notation, it is written as 2.0731386 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6378864 positive integers (up to 20731386) that are relatively prime to 20731386.
20731386 has 16 divisors, whose sum is 44652384
The reverse of 20731386 is 68313702
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million seven hundred thirty-one thousand three hundred eighty-six
Scientific notation
2.0731386 × 10^7
Engineering notation
2.0731386 × 10^6
Prime Factorization
2 × 3 × 13 × 265787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20731386
Product of the distinct prime numbers
The prime factorization of 20731386 is 2 × 3 × 13 × 265787.
Since it has a total of 4 prime factors.
6 , 1 , 36 , 86 , 436 , 671 , 703 , 6351 , 25437 , 89635 , 37226 , 394330 , 735170 , 4353858 , 73539618 , 92512335 , 689322002 , 474886493 , 9330888866 , 5862715051
n×2
41462772
n×3
62194158
n×4
82925544
n×5
103656930
n÷2
10365693
n÷3
6910462
n÷3
5182846.5
n÷5
4146277.2
n2
429790365480996
n3
8.9101499658676E+21
n4
1.8471975826029E+29
n5
3.8294966103207E+36
2 √n
4553.1731792235
3 √n
274.7110397278
4 √n
67.477204885972
5 √n
29.062011318536
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 265787 , 531574 , 797361 , 1594722 , 3455231 , 6910462 , 10365693 , 20731386
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20731385
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20731386 can be divided by 16 positive divisors.
The sum of these divisors (counting 20731386) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000101010111111010
3
Ternary
1110000021010010
4
Quaternary
1033011113322
5
Quinary
20301401021
6
Senary
2020202350
8
Octal
117052772
10
Decimal
20731386
12
Duodecimal
6b393b6
16
Hexadecimal
13c55fa
20
Vigesimal
69b896
36
Base36
cccfu
md5
7f0d8d791d8c299d63ed5fd3064e5f3e
sha1
cb102cc22fcfc6ae211c0953d4186c52e04e24c7
sha256
022f31b8664b4cfd09abd1a9cee084897b16305172d08ed55d79dc1ec0dbf64b
sha512
c33fc08303602319bab0820e4e1e5005cda2684bb71479cc9fe57cb918eaaccd36a7db6d2615aff04788ad38f7f5550ec7a242e6ba02fa5795b2a30cdadf3f4a
ripemd-160
3283f33a5d948b417f3cde6ec05191a10e320611
Diameter
41462772
Circumference
130259139.91267
Area
1.3502262547788E+15
Volume
3.7322748900204E+22
Surface area
5.4009050191151E+15
Circumference
130259139.91267
Perimeter
82925544
Area
429790365480996
Diagonal
29318607.247992
Surface area
2578742192885976
Volume
8.9101499658676E+21
Space diagonal
35907813.863322
Perimeter
62194158
Area
1.8610468740417E+14
Altitude
17953906.931661
Surface area
1.8610468740417E+14
Volume
1.050071243709E+21
Height
9772869.0826639