820804785 is an odd 9-digits composite number following 820804784
and preceding 820804786 . In scientific notation, it is written as 8.20804785 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 433248768 positive integers (up to 820804785) that are relatively prime to 820804785.
820804785 has 16 divisors, whose sum is 1326829056
The reverse of 820804785 is 587408028
Previous prime number is 97
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
eight hundred twenty million eight hundred four thousand seven hundred eighty-five
Scientific notation
8.20804785 × 10^8
Engineering notation
8.20804785 × 10^6
Prime Factorization
3 × 5 × 97 × 564127
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
820804785 Product of the distinct prime numbers
The prime factorization of 820804785 is 3 × 5 × 97 × 564127.
Since it has a total of 4 prime factors.
5 , 10 , 22 , 51 , 654 , 956 , 5510 , 2957 , 51134 , 70583 , 44039 , 643701 , 7932634 , 939226 , 64325236 , 24605635 , 261533901 , 570921771 , 6075766409 , 1868292181
n×2
1641609570
n×3
2462414355
n×4
3283219140
n×5
4104023925
n÷2
410402392.5
n÷3
273601595
n÷3
205201196.25
n÷5
164160957
n2
673720495078896225
n3
5.5299300611333E+26
n4
4.5389930548935E+35
n5
3.7256272185384E+44
2 √n28649.690836028
3 √n936.29626985303
4 √n169.26219553116
5 √n60.652397967568
1 , 3 , 5 , 15 , 97 , 291 , 485 , 1455 , 564127 , 1692381 , 2820635 , 8461905 , 54720319 , 164160957 , 273601595 , 820804785
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
-820804784 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 820804785 can be divided by 16 positive divisors.
The sum of these divisors (counting 820804785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111011000111110010110001
3
Ternary
2010012111012111020
4
Quaternary
300323013302301
5
Quinary
3140111223120
6
Senary
213240410053
8
Octal
6073076261
10
Decimal
820804785
12
Duodecimal
1aaa76929
16
Hexadecimal
30ec7cb1
20
Vigesimal
cga0bj5
36
Base36
dkop0x
md5
302a2e99f1aa43fa61c1ab4f946f8545
sha1
f2701d52be46575ccd320848d027e7f29a7b24b4
sha256
561d0f9e073c48361dd0d4e36a516aada22cae59ac9982ed55f4e3b9096d97ac
sha512
699def49a1f60f9846e7a84da16efd3b65c9e96232772c19665d5722bbf903e97698e362626999690c411852cfa15ba34f417e91496551fb21c93aee6679db61
ripemd-160
42db903b3bf72b1d626a042cf7823ddd88be04fe
Diameter
1641609570
Circumference
5157268565.1747
Area
2.1165553579127E+18
Volume
2.3163716873229E+27
Surface area
8.466221431651E+18
Circumference
5157268565.1747
Perimeter
3283219140
Area
673720495078896225
Diagonal
1160793259.0077
Surface area
4042322970473377350
Volume
5.5299300611333E+26
Space diagonal
1421675590.7156
Perimeter
2462414355
Area
2.9172953189428E+17
Altitude
710837795.35782
Surface area
2.9172953189428E+17
Volume
6.5170850761911E+25
Height
386931086.33591