20691421 is an odd 8-digits composite number following 20691420
and preceding 20691422 . In scientific notation, it is written as 2.0691421 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 19369680 positive integers (up to 20691421) that are relatively prime to 20691421.
20691421 has 8 divisors, whose sum is 22051584
The reverse of 20691421 is 12419602
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred ninety-one thousand four hundred twenty-one
Scientific notation
2.0691421 × 10^7
Engineering notation
2.0691421 × 10^6
Prime Factorization
23 × 47 × 19141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20691421
Product of the distinct prime numbers
The prime factorization of 20691421 is 23 × 47 × 19141.
Since it has a total of 3 prime factors.
6 , 2 , 17 , 13 , 45 , 200 , 6902 , 8842 , 44178 , 10002 , 713162 , 305883 , 3438128 , 5202370 , 91367643 , 98471000 , 841096331 , 855527478 , 5289049671 , 9428581471
n×2
41382842
n×3
62074263
n×4
82765684
n×5
103457105
n÷2
10345710.5
n÷3
6897140.3333333
n÷3
5172855.25
n÷5
4138284.2
n2
428134902999241
n3
8.8587195227515E+21
n4
1.8329949516617E+29
n5
3.7927270235707E+36
2 √n
4548.7823645455
3 √n
274.53440112629
4 √n
67.444661497746
5 √n
29.050797790164
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
-20691420
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 20691421 can be divided by 8 positive divisors.
The sum of these divisors (counting 20691421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111011100111011101
3
Ternary
1102221020021221
4
Quaternary
1032323213131
5
Quinary
20244111141
6
Senary
2015253341
8
Octal
116734735
10
Decimal
20691421
12
Duodecimal
6b1a251
16
Hexadecimal
13bb9dd
20
Vigesimal
6968b1
36
Base36
cbhlp
md5
bace3b38f81f4e63914679af925e2d82
sha1
5cc683521fc6eec60d21b3f7905ae84c3719c499
sha256
7e5e1f6f7c5ecae1bda17421d514f6c0af63158e34c628e04d5424dd3c6986e6
sha512
990add517704b4c3461cad5c0f9d6641a68d3dc811c82467ae0b3b3188c4d89462686527a9a93007b42941675dcf6d71f5cca86f508051c5832afd670694b79a
ripemd-160
1608c305ecf075457b39cc97ebd0a33597e4df9b
Diameter
41382842
Circumference
130008032.41187
Area
1.3450254660078E+15
Volume
3.7107317563851E+22
Surface area
5.3801018640312E+15
Circumference
130008032.41187
Perimeter
82765684
Area
428134902999241
Diagonal
29262088.202971
Surface area
2568809417995446
Volume
8.8587195227515E+21
Space diagonal
35838592.452798
Perimeter
62074263
Area
1.8538785112206E+14
Altitude
17919296.226399
Surface area
1.8538785112206E+14
Volume
1.0440101078612E+21
Height
9754029.4009905