20642709 is an odd 8-digits composite number following 20642708
and preceding 20642710 . In scientific notation, it is written as 2.0642709 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12649728 positive integers (up to 20642709) that are relatively prime to 20642709.
20642709 has 16 divisors, whose sum is 29823552
The reverse of 20642709 is 90724602
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million six hundred forty-two thousand seven hundred nine
Scientific notation
2.0642709 × 10^7
Engineering notation
2.0642709 × 10^6
Prime Factorization
3 × 17 × 43 × 9413
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20642709
Product of the distinct prime numbers
The prime factorization of 20642709 is 3 × 17 × 43 × 9413.
Since it has a total of 4 prime factors.
6 , 1 , 95 , 17 , 649 , 169 , 8898 , 6550 , 99283 , 73680 , 873683 , 988169 , 492375 , 1271676 , 65319745 , 96244808 , 736269252 , 447318753 , 6814130409 , 6722348473
n×2
41285418
n×3
61928127
n×4
82570836
n×5
103213545
n÷2
10321354.5
n÷3
6880903
n÷3
5160677.25
n÷5
4128541.8
n2
426121434858681
n3
8.7963007784502E+21
n4
1.8157947724602E+29
n5
3.7482923091617E+36
2 √n
4543.4248095462
3 √n
274.31879441207
4 √n
67.404931641136
5 √n
29.037106541535
1 , 3 , 17 , 43 , 51 , 129 , 731 , 2193 , 9413 , 28239 , 160021 , 404759 , 480063 , 1214277 , 6880903 , 20642709
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
-20642708
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 20642709 can be divided by 16 positive divisors.
The sum of these divisors (counting 20642709) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110101111101110010101
3
Ternary
1102211202110210
4
Quaternary
1032233232111
5
Quinary
20241031314
6
Senary
2014240033
8
Octal
116575625
10
Decimal
20642709
12
Duodecimal
6ab6019
16
Hexadecimal
13afb95
20
Vigesimal
6906f9
36
Base36
cag0l
md5
e5e5249845af864eb5c2fd07fa7bf87a
sha1
0cdd88b834ed948bf84779324b4c21e029761453
sha256
c30744d31b7666ebbe7d93788d9404136f61e1d126f64ed36ed13fa74058f28e
sha512
91b4cf3f7b0e3d3624fd74d1498e49768db450e949d0d1c8500f7dba805196278f1e64c58ee69b7e42ce31818a7deb55c8dfa30b66e9a9714a116eb858248d15
ripemd-160
205d91abb7776e5182ca2502912cdd5c93665d50
Diameter
41285418
Circumference
129701965.88918
Area
1.3386999692892E+15
Volume
3.6845858539127E+22
Surface area
5.3547998771567E+15
Circumference
129701965.88918
Perimeter
82570836
Area
426121434858681
Diagonal
29193199.031921
Surface area
2556728609152086
Volume
8.7963007784502E+21
Space diagonal
35754220.793859
Perimeter
61928127
Area
1.8451599384235E+14
Altitude
17877110.39693
Surface area
1.8451599384235E+14
Volume
1.0366539882998E+21
Height
9731066.3439737