20797809 is an odd 8-digits composite number following 20797808
and preceding 20797810 . In scientific notation, it is written as 2.0797809 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 13865204 positive integers (up to 20797809) that are relatively prime to 20797809.
20797809 has 4 divisors, whose sum is 27730416
The reverse of 20797809 is 90879702
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million seven hundred ninety-seven thousand eight hundred nine
Scientific notation
2.0797809 × 10^7
Engineering notation
2.0797809 × 10^6
Prime Factorization
3 × 6932603
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20797809
Product of the distinct prime numbers
The prime factorization of 20797809 is 3 × 6932603.
Since it has a total of 2 prime factors.
1 , 6 , 26 , 53 , 996 , 836 , 4159 , 153 , 1846 , 20434 , 635992 , 478006 , 1388995 , 6111641 , 73636875 , 57925259 , 9175877 , 44219128 , 4250259385 , 6919757102
n×2
41595618
n×3
62393427
n×4
83191236
n×5
103989045
n÷2
10398904.5
n÷3
6932603
n÷3
5199452.25
n÷5
4159561.8
n2
432548859200481
n3
8.9960685568195E+21
n4
1.8709851559564E+29
n5
3.8912391915416E+36
2 √n
4560.4614898056
3 √n
275.00411674278
4 √n
67.531189015192
5 √n
29.080610333131
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
-20797808
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 20797809 can be divided by 4 positive divisors.
The sum of these divisors (counting 20797809) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010101100101110001
3
Ternary
1110010122020020
4
Quaternary
1033111211301
5
Quinary
20311012214
6
Senary
2021434053
8
Octal
117254561
10
Decimal
20797809
12
Duodecimal
6b6b929
16
Hexadecimal
13d5971
20
Vigesimal
69jea9
36
Base36
cdrox
md5
0aed515fda51315f992b7391f26bab34
sha1
3d351840f987d158868ccdca65814c5a6fb68df7
sha256
103c6992d1d5a2e4e44b3b589aa8dd6c518e0b4cdc71bed41da4d78ce3f66f97
sha512
f4ffbed29ec2a1f69609c0e5732c362f8dff009a453178111271b5dcc0e909afa1ec0d65ece3cedcb2b5ac188aed468a08a56b8211a3422aafd7cb34eda59661
ripemd-160
d2a1f12eed2d463faf937cc49a72f40ef6e3aec8
Diameter
41595618
Circumference
130676487.93033
Area
1.3588923183829E+15
Volume
3.7682643852392E+22
Surface area
5.4355692735315E+15
Circumference
130676487.93033
Perimeter
83191236
Area
432548859200481
Diagonal
29412543.555445
Surface area
2595293155202886
Volume
8.9960685568195E+21
Space diagonal
36022861.874113
Perimeter
62393427
Area
1.872991502228E+14
Altitude
18011430.937057
Surface area
1.872991502228E+14
Volume
1.0601968467577E+21
Height
9804181.1851484