20730785 is an odd 8-digits composite number following 20730784
and preceding 20730786 . In scientific notation, it is written as 2.0730785 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 15837120 positive integers (up to 20730785) that are relatively prime to 20730785.
20730785 has 16 divisors, whose sum is 26019840
The reverse of 20730785 is 58703702
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million seven hundred thirty thousand seven hundred eighty-five
Scientific notation
2.0730785 × 10^7
Engineering notation
2.0730785 × 10^6
Prime Factorization
5 × 31 × 79 × 1693
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20730785
Product of the distinct prime numbers
The prime factorization of 20730785 is 5 × 31 × 79 × 1693.
Since it has a total of 4 prime factors.
9 , 1 , 40 , 90 , 321 , 144 , 247 , 7537 , 66344 , 32304 , 998207 , 140623 , 846626 , 5776904 , 5525975 , 77119155 , 115867439 , 524926550 , 6882038318 , 3071390872
n×2
41461570
n×3
62192355
n×4
82923140
n×5
103653925
n÷2
10365392.5
n÷3
6910261.6666667
n÷3
5182696.25
n÷5
4146157
n2
429765446716225
n3
8.909375076303E+21
n4
1.846983391912E+29
n5
3.8289415596298E+36
2 √n
4553.1071808162
3 √n
274.70838509053
4 √n
67.476715841957
5 √n
29.061842815848
1 , 5 , 31 , 79 , 155 , 395 , 1693 , 2449 , 8465 , 12245 , 52483 , 133747 , 262415 , 668735 , 4146157 , 20730785
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
-20730784
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 20730785 can be divided by 16 positive divisors.
The sum of these divisors (counting 20730785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000101001110100001
3
Ternary
1110000020021212
4
Quaternary
1033011032201
5
Quinary
20301341120
6
Senary
2020155505
8
Octal
117051641
10
Decimal
20730785
12
Duodecimal
6b38b95
16
Hexadecimal
13c53a1
20
Vigesimal
69b6j5
36
Base36
ccbz5
md5
f3158d3d269f8d8e38967d8128fd9cbd
sha1
db349dd2f745e33829a009f06054f837bfb2142b
sha256
1a2e12e2f1839d0455f798abcd352890f212ba35bef6d2310ba4dc0debdb8850
sha512
96a539ef8ec53fd841982260ea79429157559027485a04dc024fe65a6ea040ec8c26922682a7e9964c18a4687400f6a5ba53ce0efc0efad46b957563c046e1b2
ripemd-160
1616c717961d4919a2287374b60f534f16558721
Diameter
41461570
Circumference
130255363.7183
Area
1.3501479701704E+15
Volume
3.7319503050386E+22
Surface area
5.4005918806817E+15
Circumference
130255363.7183
Perimeter
82923140
Area
429765446716225
Diagonal
29317757.305641
Surface area
2578592680297350
Volume
8.909375076303E+21
Space diagonal
35906772.900787
Perimeter
62192355
Area
1.8609389726251E+14
Altitude
17953386.450393
Surface area
1.8609389726251E+14
Volume
1.049979922098E+21
Height
9772585.7685469