20797785 is an odd 8-digits composite number following 20797784
and preceding 20797786 . In scientific notation, it is written as 2.0797785 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 10708992 positive integers (up to 20797785) that are relatively prime to 20797785.
20797785 has 16 divisors, whose sum is 28688400
The reverse of 20797785 is 58779702
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million seven hundred ninety-seven thousand seven hundred eighty-five
Scientific notation
2.0797785 × 10^7
Engineering notation
2.0797785 × 10^6
Prime Factorization
9 × 5 × 29 × 15937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20797785
Product of the distinct prime numbers
The prime factorization of 20797785 is 9 × 5 × 29 × 15937.
Since it has a total of 4 prime factors.
6 , 7 , 20 , 52 , 12 , 992 , 5261 , 6715 , 22142 , 65286 , 345194 , 710441 , 1526902 , 4169514 , 38896061 , 83791671 , 500992084 , 559118216 , 2856651437 , 7623633340
n×2
41595570
n×3
62393355
n×4
83191140
n×5
103988925
n÷2
10398892.5
n÷3
6932595
n÷3
5199446.25
n÷5
4159557
n2
432547860906225
n3
8.9960374133376E+21
n4
1.8709765197455E+29
n5
3.8912167397715E+36
2 √n
4560.4588584922
3 √n
275.00401096078
4 √n
67.531169532981
5 √n
29.08060362151
1 , 5 , 9 , 29 , 45 , 145 , 261 , 1305 , 15937 , 79685 , 143433 , 462173 , 717165 , 2310865 , 4159557 , 20797785
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
-20797784
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 20797785 can be divided by 16 positive divisors.
The sum of these divisors (counting 20797785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010101100101011001
3
Ternary
1110010122012100
4
Quaternary
1033111211121
5
Quinary
20311012120
6
Senary
2021434013
8
Octal
117254531
10
Decimal
20797785
12
Duodecimal
6b6b909
16
Hexadecimal
13d5959
20
Vigesimal
69je95
36
Base36
cdro9
md5
b54a3d55390f01ca4e8a0f37acf944be
sha1
b25d3e33e05325868b6dfe0bd1a504f8ebdb8e5e
sha256
fe8ef560eab10037b849f6d4813400cfa8fc56eb7e6db6eb34947812cdd1d44b
sha512
ac4fdabb65c5ddf5de308c0b080c77f6e08d5f7e968eadf9f6b44719d4e44288574f4ffbd2f2e67bf9906e95fc104a83ce2d791ba7d42d7ab23bd37ba0d3ec3f
ripemd-160
36106946375f8da36fe8d7a668b3d50190f1d8e3
Diameter
41595570
Circumference
130676337.13388
Area
1.358889182149E+15
Volume
3.768251339888E+22
Surface area
5.4355567285959E+15
Circumference
130676337.13388
Perimeter
83191140
Area
432547860906225
Diagonal
29412509.61432
Surface area
2595287165437350
Volume
8.9960374133376E+21
Space diagonal
36022820.304894
Perimeter
62393355
Area
1.872987179487E+14
Altitude
18011410.152447
Surface area
1.872987179487E+14
Volume
1.0601931764631E+21
Height
9804169.8714399