21686422 is an even 8-digits composite number following 21686421
and preceding 21686423 . In scientific notation, it is written as 2.1686422 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 10393920 positive integers (up to 21686422) that are relatively prime to 21686422.
21686422 has 16 divisors, whose sum is 33897600
The reverse of 21686422 is 22468612
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million six hundred eighty-six thousand four hundred twenty-two
Scientific notation
2.1686422 × 10^7
Engineering notation
2.1686422 × 10^6
Prime Factorization
2 × 109 × 31 × 3209
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21686422
Product of the distinct prime numbers
The prime factorization of 21686422 is 2 × 109 × 31 × 3209.
Since it has a total of 4 prime factors.
10 , 9 , 30 , 74 , 560 , 523 , 8405 , 5213 , 98663 , 57313 , 258304 , 502404 , 3883830 , 1447462 , 10055978 , 77566142 , 875935366 , 236645885 , 9887796770 , 9453649871
n×2
43372844
n×3
65059266
n×4
86745688
n×5
108432110
n÷2
10843211
n÷3
7228807.3333333
n÷3
5421605.5
n÷5
4337284.4
n2
470300899162084
n3
1.0199143766208E+22
n4
2.2118293575266E+29
n5
4.7966664839312E+36
2 √n
4656.8682609668
3 √n
278.8662574175
4 √n
68.241250435252
5 √n
29.324970297816
1 , 2 , 31 , 62 , 109 , 218 , 3209 , 3379 , 6418 , 6758 , 99479 , 198958 , 349781 , 699562 , 10843211 , 21686422
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
-21686421
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 21686422 can be divided by 16 positive divisors.
The sum of these divisors (counting 21686422) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101110100010010110
3
Ternary
1111210210011211
4
Quaternary
1102232202112
5
Quinary
21022431142
6
Senary
2052452034
8
Octal
122564226
10
Decimal
21686422
12
Duodecimal
731a01a
16
Hexadecimal
14ae896
20
Vigesimal
6fag12
36
Base36
cwtcm
md5
2ae520c52ef38cd7a8ee1daf0d8b8a6b
sha1
1e3506402618da766a6d1a706b1dd3645c4cc919
sha256
8660a9e3c7b9a9c390cfd5bf67ea5ed916e7407a59a1651edb5221e3f106057b
sha512
8c3dae38adc98013f08b6039b0f0d0c6303e2bfde8169f657e96077718c4a4f0a785f1ca2aeeb8abef08fcb0ffcfd6642426b7ec160715d19d6b39fc1ab09ad7
ripemd-160
5469aa9ce9957fc9855a34f7d684c7450600655d
Diameter
43372844
Circumference
136259808.0757
Area
1.4774938497843E+15
Volume
4.2722073505102E+22
Surface area
5.9099753991371E+15
Circumference
136259808.0757
Perimeter
86745688
Area
470300899162084
Diagonal
30669232.111746
Surface area
2821805394972504
Volume
1.0199143766208E+22
Space diagonal
37561984.738379
Perimeter
65059266
Area
2.0364626304851E+14
Altitude
18780992.36919
Surface area
2.0364626304851E+14
Volume
1.2019806198971E+21
Height
10223077.370582