20731688 is an even 8-digits composite number following 20731687
and preceding 20731689 . In scientific notation, it is written as 2.0731688 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 10365840 positive integers (up to 20731688) that are relatively prime to 20731688.
20731688 has 8 divisors, whose sum is 38871930
The reverse of 20731688 is 88613702
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred thirty-one thousand six hundred eighty-eight
Scientific notation
2.0731688 × 10^7
Engineering notation
2.0731688 × 10^6
Prime Factorization
2 × 2 × 2 × 2591461
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5182922
Product of the distinct prime numbers
The prime factorization of 20731688 is 2 × 2 × 2 × 2591461.
Since it has a total of 4 prime factors.
10 , 4 , 13 , 15 , 730 , 967 , 1824 , 6573 , 83258 , 74410 , 590141 , 309282 , 5101897 , 1230043 , 31418409 , 62931904 , 659526104 , 73153404 , 67901883 , 78423599
n×2
41463376
n×3
62195064
n×4
82926752
n×5
103658440
n÷2
10365844
n÷3
6910562.6666667
n÷3
5182922
n÷5
4146337.6
n2
429802887329344
n3
8.9105393616111E+21
n4
1.8473052195664E+29
n5
3.8297755452822E+36
2 √n
4553.2063427875
3 √n
274.71237365263
4 √n
67.477450624542
5 √n
29.062095988961
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
-20731687
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 20731688 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731688) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101011100101000
3
Ternary
1110000021112022
4
Quaternary
1033011130220
5
Quinary
20301403223
6
Senary
2020204012
8
Octal
117053450
10
Decimal
20731688
12
Duodecimal
6b39608
16
Hexadecimal
13c5728
20
Vigesimal
69b948
36
Base36
ccco8
md5
ecaff899d534669dd649efd3bd1bc9c5
sha1
7eae239948ecb71f2bdff1f6eca22ea06e31b362
sha256
ecbcf81ab7d176c5164f7533a291f99219b7261120b1c30bc6bee6241cd414b4
sha512
87d4398ef5ed3e7d94bb40afdbf38b56c7b7e5ff48d98f11b876f767da4841212aa3a86fa6a311a00fe3601910f2b54c4adfb6e5091eb76a7b4dbfa4dc1fa38a
ripemd-160
cd66223a6d71b547a39747c174f94c0fd491d199
Diameter
41463376
Circumference
130261037.43463
Area
1.3502655933255E+15
Volume
3.732437999728E+22
Surface area
5.4010623733022E+15
Circumference
130261037.43463
Perimeter
82926752
Area
429802887329344
Diagonal
29319034.340488
Surface area
2578817323976064
Volume
8.9105393616111E+21
Space diagonal
35908336.942666
Perimeter
62195064
Area
1.8611010952356E+14
Altitude
17954168.471333
Surface area
1.8611010952356E+14
Volume
1.0501171344375E+21
Height
9773011.4468292