20457639 is an odd 8-digits composite number following 20457638
and preceding 20457640 . In scientific notation, it is written as 2.0457639 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13638420 positive integers (up to 20457639) that are relatively prime to 20457639.
20457639 has 4 divisors, whose sum is 22730720
The reverse of 20457639 is 93675402
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million four hundred fifty-seven thousand six hundred thirty-nine
Scientific notation
2.0457639 × 10^7
Engineering notation
2.0457639 × 10^6
Prime Factorization
9 × 2273071
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20457639
Product of the distinct prime numbers
The prime factorization of 20457639 is 9 × 2273071.
Since it has a total of 2 prime factors.
4 , 2 , 42 , 89 , 862 , 525 , 1716 , 1354 , 62113 , 60849 , 370163 , 180798 , 7982797 , 3032788 , 82649899 , 38952472 , 317136053 , 961178901 , 284349757 , 7185817698
n×2
40915278
n×3
61372917
n×4
81830556
n×5
102288195
n÷2
10228819.5
n÷3
6819213
n÷3
5114409.75
n÷5
4091527.8
n2
418514993454321
n3
8.5618286521759E+21
n4
1.7515479974607E+29
n5
3.5832536623224E+36
2 √n
4523.0121600544
3 √n
273.49654027866
4 √n
67.253343114334
5 √n
28.984852999909
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
-20457638
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 20457639 can be divided by 4 positive divisors.
The sum of these divisors (counting 20457639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000010100010100111
3
Ternary
1102111100121100
4
Quaternary
1032002202213
5
Quinary
20214121024
6
Senary
2010251143
8
Octal
116024247
10
Decimal
20457639
12
Duodecimal
6a26ab3
16
Hexadecimal
13828a7
20
Vigesimal
67h41j
36
Base36
c6h7r
md5
301895c95b2be1a8b8b4d254417afbce
sha1
17cd80b14e28c3a7842f2e025acd568940f2678c
sha256
4751fa0ad977d9bed4878eafe34852888fe61c22baf8fff262f716e9e4b67a22
sha512
4fac93b4d9aeaa7a2ed8c72dcc7057ca0ad73b2b6ca5539302cde79b9e1061db54868f555863f41d741eed487b05d5c3db66ecc07b6ddc674957258633a516a7
ripemd-160
bb7e16e6a6972e139a2b67691304a28c02ef2fa7
Diameter
40915278
Circumference
128539136.78438
Area
1.3148036288533E+15
Volume
3.5863703993294E+22
Surface area
5.2592145154131E+15
Circumference
128539136.78438
Perimeter
81830556
Area
418514993454321
Diagonal
28931470.527933
Surface area
2511089960725926
Volume
8.5618286521759E+21
Space diagonal
35433670.150903
Perimeter
61372917
Area
1.8122230809806E+14
Altitude
17716835.075451
Surface area
1.8122230809806E+14
Volume
1.0090211832185E+21
Height
9643823.5093109