21742561 is an odd 8-digits composite number following 21742560
and preceding 21742562 . In scientific notation, it is written as 2.1742561 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 21240960 positive integers (up to 21742561) that are relatively prime to 21742561.
21742561 has 8 divisors, whose sum is 22247784
The reverse of 21742561 is 16524712
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million seven hundred forty-two thousand five hundred sixty-one
Scientific notation
2.1742561 × 10^7
Engineering notation
2.1742561 × 10^6
Prime Factorization
53 × 277 × 1481
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21742561
Product of the distinct prime numbers
The prime factorization of 21742561 is 53 × 277 × 1481.
Since it has a total of 3 prime factors.
9 , 8 , 22 , 37 , 92 , 902 , 5371 , 5086 , 40497 , 71203 , 82253 , 775589 , 6310267 , 9090938 , 87233979 , 84305744 , 175268550 , 978779723 , 6219526753 , 1592964850
n×2
43485122
n×3
65227683
n×4
86970244
n×5
108712805
n÷2
10871280.5
n÷3
7247520.3333333
n÷3
5435640.25
n÷5
4348512.2
n2
472738958838721
n3
1.0278555649627E+22
n4
2.2348212320392E+29
n5
4.8590736961707E+36
2 √n
4662.8919138234
3 √n
279.10668102509
4 √n
68.285371155347
5 √n
29.340137138022
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
-21742560
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 21742561 can be divided by 8 positive divisors.
The sum of these divisors (counting 21742561) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111100001111100001
3
Ternary
1111220122012001
4
Quaternary
1102330033201
5
Quinary
21031230221
6
Senary
2054004001
8
Octal
122741741
10
Decimal
21742561
12
Duodecimal
7346601
16
Hexadecimal
14bc3e1
20
Vigesimal
6fhg81
36
Base36
cy0o1
md5
b43809f77d8f02899c4a0ff1460d68a9
sha1
849c4665433adf32c928923b788633c6b67e75f8
sha256
011b15e3bd386c3686e6b7716d8361408355c50b0f28c3ece832ed78e06c657c
sha512
82f2dece603e23d04017a4c9780dd57ad999462ff2cb7f1a2e66d67227844967f1f56649741379e8035ddd21c6f8c7986b807b873e0bb756470c54bba4b35bec
ripemd-160
d9b1cc63f3ac419d812f9bc43b2341eac7c15d3b
Diameter
43485122
Circumference
136612539.81566
Area
1.4851532401534E+15
Volume
4.3054713224511E+22
Surface area
5.9406129606137E+15
Circumference
136612539.81566
Perimeter
86970244
Area
472738958838721
Diagonal
30748624.646924
Surface area
2836433753032326
Volume
1.0278555649627E+22
Space diagonal
37659220.338666
Perimeter
65227683
Area
2.0470197385647E+14
Altitude
18829610.169333
Surface area
2.0470197385647E+14
Volume
1.2113394001091E+21
Height
10249541.548975