813778861 is an odd 9-digits composite number following 813778860
and preceding 813778862 . In scientific notation, it is written as 8.13778861 × 10^8.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 674179200 positive integers (up to 813778861) that are relatively prime to 813778861.
813778861 has 16 divisors, whose sum is 961235968
The reverse of 813778861 is 168877318
Previous prime number is 1021
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
eight hundred thirteen million seven hundred seventy-eight thousand eight hundred sixty-one
Scientific notation
8.13778861 × 10^8
Engineering notation
8.13778861 × 10^6
Prime Factorization
7 × 31 × 1021 × 3673
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
813778861
Product of the distinct prime numbers
The prime factorization of 813778861 is 7 × 31 × 1021 × 3673.
Since it has a total of 4 prime factors.
8 , 3 , 18 , 74 , 364 , 768 , 4720 , 247 , 5275 , 18059 , 859078 , 350451 , 2640422 , 36136 , 94443866 , 3707507 , 406665349 , 326267180 , 2048590352 , 530411859
n×2
1627557722
n×3
2441336583
n×4
3255115444
n×5
4068894305
n÷2
406889430.5
n÷3
271259620.33333
n÷3
203444715.25
n÷5
162755772.2
n2
662236034610457321
n3
5.3891368595845E+26
n4
4.3855656553658E+35
n5
3.5688806238643E+44
2 √n
28526.809513158
3 √n
933.61710825469
4 √n
168.898814422
5 √n
60.548206142353
1 , 7 , 31 , 217 , 1021 , 3673 , 7147 , 25711 , 31651 , 113863 , 221557 , 797041 , 3750133 , 26250931 , 116254123 , 813778861
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
-813778860
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 813778861 can be divided by 16 positive divisors.
The sum of these divisors (counting 813778861) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000100000010100011110101101
3
Ternary
2002201021020201211
4
Quaternary
300200110132231
5
Quinary
3131311410421
6
Senary
212430034421
8
Octal
6040243655
10
Decimal
813778861
12
Duodecimal
1a8648a11
16
Hexadecimal
308147ad
20
Vigesimal
ce62731
36
Base36
dgi3sd
md5
5dcd6119f0899549b1e88eabbffdd325
sha1
58020082d8b077df1d160a8c28036526059ba039
sha256
1d50207dd213714ee306290ba9962442829e6d473f4b1172fe7c5db946c528e2
sha512
34aa8e1c0331b64dca7c62a84af380c8d2a1bf4b2c4329cd4e41954920d87c1b68e53a4a027b84c9d10abdcd04bc289961086d84272620a73cbc71e57afc7008
ripemd-160
379bc73332bdedf6fb9a95493b18af6bb50a5589
Diameter
1627557722
Circumference
5113123382.7285
Area
2.0804758612746E+18
Volume
2.2573963689681E+27
Surface area
8.3219034450986E+18
Circumference
5113123382.7285
Perimeter
3255115444
Area
662236034610457321
Diagonal
1150857101.9987
Surface area
3973416207662743926
Volume
5.3891368595845E+26
Space diagonal
1409506333.3775
Perimeter
2441336583
Area
2.8675661463706E+17
Altitude
704753166.68877
Surface area
2.8675661463706E+17
Volume
6.3511586969243E+25
Height
383619033.99958