20681091 is an odd 8-digits composite number following 20681090
and preceding 20681092 . In scientific notation, it is written as 2.0681091 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 13581216 positive integers (up to 20681091) that are relatively prime to 20681091.
20681091 has 12 divisors, whose sum is 30319432
The reverse of 20681091 is 19018602
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million six hundred eighty-one thousand ninety-one
Scientific notation
2.0681091 × 10^7
Engineering notation
2.0681091 × 10^6
Prime Factorization
3 × 3 × 67 × 34297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6893697
Product of the distinct prime numbers
The prime factorization of 20681091 is 3 × 3 × 67 × 34297.
Since it has a total of 4 prime factors.
8 , 6 , 79 , 19 , 695 , 532 , 9606 , 7337 , 96726 , 72322 , 212475 , 329353 , 6196913 , 3171444 , 89552179 , 94197903 , 790708263 , 702449015 , 5177365479 , 7553003406
n×2
41362182
n×3
62043273
n×4
82724364
n×5
103405455
n÷2
10340545.5
n÷3
6893697
n÷3
5170272.75
n÷5
4136218.2
n2
427707524950281
n3
8.8454582448815E+21
n4
1.829337268991E+29
n5
3.7832690529693E+36
2 √n
4547.6467540916
3 √n
274.48870727031
4 √n
67.436242140941
5 √n
29.047896542473
1 , 3 , 9 , 67 , 201 , 603 , 34297 , 102891 , 308673 , 2297899 , 6893697 , 20681091
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681091 can be divided by 12 positive divisors.
The sum of these divisors (counting 20681091) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111001000110000011
3
Ternary
1102220201010100
4
Quaternary
1032321012003
5
Quinary
20243243331
6
Senary
2015133443
8
Octal
116710603
10
Decimal
20681091
12
Duodecimal
6b14283
16
Hexadecimal
13b9183
20
Vigesimal
6952eb
36
Base36
cb9mr
md5
bb35359bdd0da670bb501faef0003948
sha1
f8a3ac4d87cf8620aae6728378a6eaa3fa744262
sha256
ca21d80d7a34d1aa8a3be46f322f578d3449c6a975d95b7a5e2ae53d6e76db53
sha512
bbf4475f2076fc608d730ac590bfed2aed928ef3cf4e3b9e2d61dcf890afcfa762c5184eb8e0c2c0ec979809431c9b5bd8fd25136ac1ba44b6333187ad977836
ripemd-160
f095a8588ca51710f4ff8b3fa35d808acf38e41e
Diameter
41362182
Circumference
129943127.10764
Area
1.3436828182689E+15
Volume
3.7051768853007E+22
Surface area
5.3747312730755E+15
Circumference
129943127.10764
Perimeter
82724364
Area
427707524950281
Diagonal
29247479.376872
Surface area
2566245149701686
Volume
8.8454582448815E+21
Space diagonal
35820700.367955
Perimeter
62043273
Area
1.8520279099835E+14
Altitude
17910350.183978
Surface area
1.8520279099835E+14
Volume
1.0424472512764E+21
Height
9749159.7922907