820138215 is an odd 9-digits composite number following 820138214
and preceding 820138216 . In scientific notation, it is written as 8.20138215 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 403760256 positive integers (up to 820138215) that are relatively prime to 820138215.
820138215 has 16 divisors, whose sum is 1413161568
The reverse of 820138215 is 512831028
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
eight hundred twenty million one hundred thirty-eight thousand two hundred fifteen
Scientific notation
8.20138215 × 10^8
Engineering notation
8.20138215 × 10^6
Prime Factorization
3 × 5 × 13 × 4205837
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
820138215
Product of the distinct prime numbers
The prime factorization of 820138215 is 3 × 5 × 13 × 4205837.
Since it has a total of 4 prime factors.
2 , 9 , 19 , 74 , 795 , 113 , 3180 , 4586 , 11654 , 68490 , 652722 , 547545 , 9156755 , 3812889 , 58301003 , 27932288 , 421185493 , 55763540 , 2650990327 , 3836660163
n×2
1640276430
n×3
2460414645
n×4
3280552860
n×5
4100691075
n÷2
410069107.5
n÷3
273379405
n÷3
205034553.75
n÷5
164027643
n2
672626691703386225
n3
5.5164685429497E+26
n4
4.5242666639184E+35
n5
3.7105239859301E+44
2 √n
28638.05536345
3 √n
936.04274792893
4 √n
169.2278208908
5 √n
60.642543685789
1 , 3 , 5 , 13 , 15 , 39 , 65 , 195 , 4205837 , 12617511 , 21029185 , 54675881 , 63087555 , 164027643 , 273379405 , 820138215
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
-820138214
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 820138215 can be divided by 16 positive divisors.
The sum of these divisors (counting 820138215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111000100101000011100111
3
Ternary
2010011020100010110
4
Quaternary
300320211003213
5
Quinary
3134423410330
6
Senary
213214224103
8
Octal
6070450347
10
Decimal
820138215
12
Duodecimal
1aa7b5033
16
Hexadecimal
30e250e7
20
Vigesimal
cg5h5af
36
Base36
dkaep3
md5
18ba14de78a3f1a7e07388cf5e4c9d98
sha1
396e8963cc8d0f39cccb172826d857e110f7824a
sha256
0e904b1d4d8296e45fb50ae505e9bbc6c85b0044ca09263fa48e5c5236b24069
sha512
d949601deb207baf83facd32b861ecedae35d8d9a487ec0228c1c30afa4fb27bddaaef2709d546c3ebdfbc61034015903a2e553cc40de6d14fd7b4943783de00
ripemd-160
787a399d5ebaaae611dca848ef34a5895f31a004
Diameter
1640276430
Circumference
5153080382.3445
Area
2.1131190732638E+18
Volume
2.310732939772E+27
Surface area
8.4524762930551E+18
Circumference
5153080382.3445
Perimeter
3280552860
Area
672626691703386225
Diagonal
1159850586.6735
Surface area
4035760150220317350
Volume
5.5164685429497E+26
Space diagonal
1420521057.6088
Perimeter
2460414645
Area
2.9125590113931E+17
Altitude
710260528.80442
Surface area
2.9125590113931E+17
Volume
6.50122052487E+25
Height
386616862.22449