21531706 is an even 8-digits composite number following 21531705
and preceding 21531707 . In scientific notation, it is written as 2.1531706 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 8890560 positive integers (up to 21531706) that are relatively prime to 21531706.
21531706 has 16 divisors, whose sum is 37091520
The reverse of 21531706 is 60713512
Previous prime number is 7289
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred thirty-one thousand seven hundred six
Scientific notation
2.1531706 × 10^7
Engineering notation
2.1531706 × 10^6
Prime Factorization
2 × 7 × 7289 × 211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21531706
Product of the distinct prime numbers
The prime factorization of 21531706 is 2 × 7 × 7289 × 211.
Since it has a total of 4 prime factors.
4 , 6 , 73 , 41 , 926 , 856 , 3004 , 3449 , 83816 , 46872 , 362658 , 990256 , 5688096 , 4040353 , 44776355 , 26127579 , 50068409 , 792878149 , 6651586277 , 6739641597
n×2
43063412
n×3
64595118
n×4
86126824
n×5
107658530
n÷2
10765853
n÷3
7177235.3333333
n÷3
5382926.5
n÷5
4306341.2
n2
463614363270436
n3
9.9824081673162E+21
n4
2.1493827783065E+29
n5
4.6279878063959E+36
2 √n
4640.2269341057
3 √n
278.201508405
4 √n
68.119211197031
5 √n
29.283008141664
1 , 2 , 7 , 14 , 211 , 422 , 1477 , 2954 , 7289 , 14578 , 51023 , 102046 , 1537979 , 3075958 , 10765853 , 21531706
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21531705
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21531706 can be divided by 16 positive divisors.
The sum of these divisors (counting 21531706) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001000110000111010
3
Ternary
1111111220221121
4
Quaternary
1102020300322
5
Quinary
21003003311
6
Senary
2045255454
8
Octal
122106072
10
Decimal
21531706
12
Duodecimal
726458a
16
Hexadecimal
1488c3a
20
Vigesimal
6eb956
36
Base36
cthyy
md5
e65dd6ea6c582ef59627f0b6122ee7f9
sha1
e08c28edb058fafc0630daaeec1e44319095f31d
sha256
494d13c7b2b84ccaa4058bb08b9e8d4a4c42bd4a402f86c485fb1a014adf2e00
sha512
7f30be57ef99572944d974e8f1e5f86f7faedf81822aa40b833cfee564ea54f8e8b84901441959803d9d111484650bc40a81476c6c295eb01ee10140d1a75b12
ripemd-160
5f899fdef86e1d041475a4c28b4867f5085599fd
Diameter
43063412
Circumference
135287698.77771
Area
1.4564874777491E+15
Volume
4.1814213551434E+22
Surface area
5.8259499109964E+15
Circumference
135287698.77771
Perimeter
86126824
Area
463614363270436
Diagonal
30450430.64623
Surface area
2781686179622616
Volume
9.9824081673162E+21
Space diagonal
37294008.765636
Perimeter
64595118
Area
2.0075090807577E+14
Altitude
18647004.382818
Surface area
2.0075090807577E+14
Volume
1.1764380846135E+21
Height
10150143.548743