20681830 is an even 8-digits composite number following 20681829
and preceding 20681831 . In scientific notation, it is written as 2.0681830 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 7303296 positive integers (up to 20681830) that are relatively prime to 20681830.
20681830 has 8 divisors, whose sum is 31047984
The reverse of 20681830 is 03818602
Previous prime number is 1495
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-one thousand eight hundred thirty
Scientific notation
2.0681830 × 10^7
Engineering notation
2.0681830 × 10^6
Prime Factorization
2 × 1495 × 6917
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681830
Product of the distinct prime numbers
The prime factorization of 20681830 is 2 × 1495 × 6917.
Since it has a total of 3 prime factors.
6 , 9 , 63 , 75 , 928 , 379 , 3509 , 6907 , 83688 , 55881 , 154935 , 906648 , 9532909 , 3484753 , 97586116 , 39829569 , 676422567 , 220264450 , 7151624392 , 8382242795
n×2
41363660
n×3
62045490
n×4
82727320
n×5
103409150
n÷2
10340915
n÷3
6893943.3333333
n÷3
5170457.5
n÷5
4136366
n2
427738092148900
n3
8.8464065063479E+21
n4
1.8295987547518E+29
n5
3.7839450413989E+36
2 √n
4547.7280041797
3 √n
274.49197667775
4 √n
67.436844559778
5 √n
29.048104133927
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
-20681829
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 20681830 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681830) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001010001100110
3
Ternary
1102220202010201
4
Quaternary
1032321101212
5
Quinary
20243304310
6
Senary
2015141114
8
Octal
116712146
10
Decimal
20681830
12
Duodecimal
6b1479a
16
Hexadecimal
13b9466
20
Vigesimal
6954ba
36
Base36
cba7a
md5
c4270a96d1c6f70118c324b7f8e1cb0d
sha1
690b75a3f0ad2a41bfdc16ceab94c307a177061f
sha256
a2820ec5d0b4042ae9eaf067b88cc449c7793b033dda72f62b3f3c1cca0a255f
sha512
adea658c617e51e0b63ca7df0dba527e8a539475deb839f8f10c9256ca59941b64df464b40e9539ab5fe215d91e95e98dee9e13d965a1325a14a4dafc1ac31b9
ripemd-160
f158b1f3cf2524e54ef3de88d88c539c3791c5cf
Diameter
41363660
Circumference
129947770.38159
Area
1.3437788479555E+15
Volume
3.7055740921349E+22
Surface area
5.375115391822E+15
Circumference
129947770.38159
Perimeter
82727320
Area
427738092148900
Diagonal
29248524.480695
Surface area
2566428552893400
Volume
8.8464065063479E+21
Space diagonal
35821980.353502
Perimeter
62045490
Area
1.8521602698362E+14
Altitude
17910990.176751
Surface area
1.8521602698362E+14
Volume
1.0425590049619E+21
Height
9749508.1602316