20804751 is an odd 8-digits composite number following 20804750
and preceding 20804752 . In scientific notation, it is written as 2.0804751 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 12200400 positive integers (up to 20804751) that are relatively prime to 20804751.
20804751 has 16 divisors, whose sum is 26035200
The reverse of 20804751 is 15740802
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eight hundred four thousand seven hundred fifty-one
Scientific notation
2.0804751 × 10^7
Engineering notation
2.0804751 × 10^6
Prime Factorization
9 × 11 × 31 × 6779
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20804751
Product of the distinct prime numbers
The prime factorization of 20804751 is 9 × 11 × 31 × 6779.
Since it has a total of 4 prime factors.
10 , 9 , 97 , 77 , 869 , 229 , 4978 , 9079 , 61717 , 8476 , 222477 , 941241 , 6867721 , 2258240 , 64633418 , 11083126 , 667818692 , 961238422 , 70347587 , 6182677782
n×2
41609502
n×3
62414253
n×4
83219004
n×5
104023755
n÷2
10402375.5
n÷3
6934917
n÷3
5201187.75
n÷5
4160950.2
n2
432837664172001
n3
9.0050798265201E+21
n4
1.8734844352587E+29
n5
3.8977377177934E+36
2 √n
4561.2225334881
3 √n
275.0347107701
4 √n
67.53682353715
5 √n
29.08255140922
1 , 9 , 11 , 31 , 99 , 279 , 341 , 3069 , 6779 , 61011 , 74569 , 210149 , 671121 , 1891341 , 2311639 , 20804751
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
-20804750
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 20804751 can be divided by 16 positive divisors.
The sum of these divisors (counting 20804751) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111010010001111
3
Ternary
1110010222202100
4
Quaternary
1033113102033
5
Quinary
20311223001
6
Senary
2021530143
8
Octal
117272217
10
Decimal
20804751
12
Duodecimal
6b73953
16
Hexadecimal
13d748f
20
Vigesimal
6a0bhb
36
Base36
cdx1r
md5
8342ead6c6878abcd6d4bb51b7eac608
sha1
f5176e3d52f902981d03607cad7f84dc0e8c47c3
sha256
f5db4bdb03b9fcf5f9d4166e63335d6cf2aebff424b872adae41c465db892ee0
sha512
a8f8b7560a6cff66dbe94d19ccd4b1812fc74cfa716da9cc44ea5f74be7707c5963050253129abe2fb0dd157f4ea775c0608c610c948f4acfec85635ac9eb075
ripemd-160
ca44b7994b7fd5b5c6e97824e141ad77bc1e2e7c
Diameter
41609502
Circumference
130720105.80273
Area
1.3597996259597E+15
Volume
3.7720390170647E+22
Surface area
5.4391985038389E+15
Circumference
130720105.80273
Perimeter
83219004
Area
432837664172001
Diagonal
29422361.025995
Surface area
2597025985032006
Volume
9.0050798265201E+21
Space diagonal
36034885.770819
Perimeter
62414253
Area
1.8742420644384E+14
Altitude
18017442.88541
Surface area
1.8742420644384E+14
Volume
1.0612588350764E+21
Height
9807453.6753317