20722561 is an odd 8-digits composite number following 20722560
and preceding 20722562 . In scientific notation, it is written as 2.0722561 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20708800 positive integers (up to 20722561) that are relatively prime to 20722561.
20722561 has 4 divisors, whose sum is 20736324
The reverse of 20722561 is 16522702
Previous prime number is 1721
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million seven hundred twenty-two thousand five hundred sixty-one
Scientific notation
2.0722561 × 10^7
Engineering notation
2.0722561 × 10^6
Prime Factorization
1721 × 12041
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20722561
Product of the distinct prime numbers
The prime factorization of 20722561 is 1721 × 12041.
Since it has a total of 2 prime factors.
9 , 2 , 85 , 50 , 670 , 325 , 2729 , 2319 , 31130 , 5230 , 905882 , 136442 , 9653398 , 7816274 , 59231909 , 97493399 , 833173954 , 669218188 , 9554147341 , 2770401114
n×2
41445122
n×3
62167683
n×4
82890244
n×5
103612805
n÷2
10361280.5
n÷3
6907520.3333333
n÷3
5180640.25
n÷5
4144512.2
n2
429424534398721
n3
8.8987761089741E+21
n4
1.8440543074356E+29
n5
3.8213527873147E+36
2 √n
4552.2039717043
3 √n
274.67205424938
4 √n
67.470022763478
5 √n
29.059536655902
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20722560
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20722561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20722561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000011001110000001
3
Ternary
1102222211000021
4
Quaternary
1033003032001
5
Quinary
20301110221
6
Senary
2020053441
8
Octal
117031601
10
Decimal
20722561
12
Duodecimal
6b34281
16
Hexadecimal
13c3381
20
Vigesimal
69a681
36
Base36
cc5mp
md5
38fdf1ece0dedc6764c4520fe9c9496c
sha1
d4a6426f396a2a32172603741dbad9220bfc2729
sha256
7c0d5b2c51bc1d602bbb1381eb8fbbcced2b038863f96d7d059ad6cca43694ba
sha512
42059231c35c85f96b2646ed4faf02997d0f107494a3cac03468381ce19c32202ac7c5444ba5e8f382aeba2b1e00844c56faaf0d3bfa4160f1b5ae7297cf620a
ripemd-160
59fed182c6f60869a987e20f52a2c17baece6c34
Diameter
41445122
Circumference
130203690.80233
Area
1.3490769625382E+15
Volume
3.7275106199858E+22
Surface area
5.396307850153E+15
Circumference
130203690.80233
Perimeter
82890244
Area
429424534398721
Diagonal
29306126.813304
Surface area
2576547206392326
Volume
8.8987761089741E+21
Space diagonal
35892528.514945
Perimeter
62167683
Area
1.859462778988E+14
Altitude
17946264.257473
Surface area
1.859462778988E+14
Volume
1.0487308218194E+21
Height
9768708.9377679