100809905 is an odd 9-digits composite number following 100809904
and preceding 100809906 . In scientific notation, it is written as 1.00809905 × 10^8.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 69126624 positive integers (up to 100809905) that are relatively prime to 100809905.
100809905 has 12 divisors, whose sum is 140722740
The reverse of 100809905 is 509908001
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
one hundred million eight hundred nine thousand nine hundred five
Scientific notation
1.00809905 × 10^8
Engineering notation
1.00809905 × 10^6
Prime Factorization
5 × 7 × 7 × 411469
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
14401415
Product of the distinct prime numbers
The prime factorization of 100809905 is 5 × 7 × 7 × 411469.
Since it has a total of 4 prime factors.
4 , 5 , 39 , 85 , 422 , 523 , 7897 , 4227 , 35974 , 82451 , 781692 , 587299 , 6486140 , 3084455 , 42483839 , 26165584 , 188374429 , 296703316 , 7847948932 , 7544176592
n×2
201619810
n×3
302429715
n×4
403239620
n×5
504049525
n÷2
50404952.5
n÷3
33603301.666667
n÷3
25202476.25
n÷5
20161981
n2
10162636946109025
n3
1.0244944650867E+24
n4
1.0327918969842E+32
n5
1.0411565301975E+40
2 √n
10040.413587099
3 √n
465.40859757779
4 √n
100.20186418974
5 √n
39.874994952924
1 , 5 , 7 , 35 , 49 , 245 , 411469 , 2057345 , 2880283 , 14401415 , 20161981 , 100809905
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
-100809904
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 100809905 can be divided by 12 positive divisors.
The sum of these divisors (counting 100809905) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110000000100011110010110001
3
Ternary
21000200200012012
4
Quaternary
12000203302301
5
Quinary
201301404110
6
Senary
14000412305
8
Octal
600436261
10
Decimal
100809905
12
Duodecimal
29917095
16
Hexadecimal
6023cb1
20
Vigesimal
1ba14f5
36
Base36
1o0pf5
md5
805897ceeecfae4aa1d594c779cdef80
sha1
e9238e4f44e0a250befaa946908825981a352dbf
sha256
6d85c1fc91e942ea5374e3fdf52041a92cbc679ad81b512a63e0c2f6ab40625e
sha512
549d1f8fb08b8bd8441f9f966a718f28d5777818621db6303c5ed775d5dda667d78ba581baa35e3efb2eceb52bed539f452554726a5beea8203d32c7edec2d29
ripemd-160
6b5f46b0a699f3985f70aebea155d9823a1d3938
Diameter
201619810
Circumference
633407313.91417
Area
3.1926865570996E+16
Volume
4.2913923802132E+24
Surface area
1.2770746228399E+17
Circumference
633407313.91417
Perimeter
403239620
Area
10162636946109025
Diagonal
142566734.87254
Surface area
60975821676654150
Volume
1.0244944650867E+24
Space diagonal
174607877.36619
Perimeter
302429715
Area
4.4005508823844E+15
Altitude
87303938.683096
Surface area
4.4005508823844E+15
Volume
1.2073783059182E+23
Height
47522244.957514