20804791 is an odd 8-digits composite number following 20804790
and preceding 20804792 . In scientific notation, it is written as 2.0804791 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 16892064 positive integers (up to 20804791) that are relatively prime to 20804791.
20804791 has 12 divisors, whose sum is 25097232
The reverse of 20804791 is 19740802
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred four thousand seven hundred ninety-one
Scientific notation
2.0804791 × 10^7
Engineering notation
2.0804791 × 10^6
Prime Factorization
7 × 19 × 19 × 8233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1094989
Product of the distinct prime numbers
The prime factorization of 20804791 is 7 × 19 × 19 × 8233.
Since it has a total of 4 prime factors.
2 , 1 , 32 , 36 , 475 , 179 , 588 , 9344 , 52737 , 42964 , 275842 , 935743 , 8816137 , 5725612 , 48218911 , 34491460 , 657344673 , 939615913 , 5575416511 , 455307299
n×2
41609582
n×3
62414373
n×4
83219164
n×5
104023955
n÷2
10402395.5
n÷3
6934930.3333333
n÷3
5201197.75
n÷5
4160958.2
n2
432839328553681
n3
9.0051317671397E+21
n4
1.873498843428E+29
n5
3.8977751876262E+36
2 √n
4561.2269182754
3 √n
275.03488703403
4 √n
67.536855999339
5 √n
29.082562592254
1 , 7 , 19 , 133 , 361 , 2527 , 8233 , 57631 , 156427 , 1094989 , 2972113 , 20804791
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20804790
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20804791 can be divided by 12 positive divisors.
The sum of these divisors (counting 20804791) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010111010010110111
3
Ternary
1110010222210211
4
Quaternary
1033113102313
5
Quinary
20311223131
6
Senary
2021530251
8
Octal
117272267
10
Decimal
20804791
12
Duodecimal
6b73987
16
Hexadecimal
13d74b7
20
Vigesimal
6a0bjb
36
Base36
cdx2v
md5
f5cd5b936674dd950dfb50959cd4b763
sha1
888bde5b0e9fe80397ae8256c17817f2b350ec70
sha256
4f8065c60bf6e388ed7f211548bc3ac0f28446cc77d7bdef362e758f5498531e
sha512
a8f43ab8ca17273a58f663a46860b991a89a17e1dea678e28716014ea7b61a5bc5f31a7cc731643921f1122bc2127bac8254c25b809606f31d6a4a94ece3f206
ripemd-160
43467ffa74f45e1a93744ef2e8013a5cbc314e35
Diameter
41609582
Circumference
130720357.13014
Area
1.359804854769E+15
Volume
3.7720607739005E+22
Surface area
5.4392194190759E+15
Circumference
130720357.13014
Perimeter
83219164
Area
432839328553681
Diagonal
29422417.594538
Surface area
2597035971322086
Volume
9.0051317671397E+21
Space diagonal
36034955.052852
Perimeter
62414373
Area
1.8742492714224E+14
Altitude
18017477.526426
Surface area
1.8742492714224E+14
Volume
1.0612649563371E+21
Height
9807472.5315126