68115909 is an odd 8-digits composite number following 68115908
and preceding 68115910 . In scientific notation, it is written as 6.8115909 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 44518320 positive integers (up to 68115909) that are relatively prime to 68115909.
68115909 has 16 divisors, whose sum is 92620800
The reverse of 68115909 is 90951186
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-eight million one hundred fifteen thousand nine hundred nine
Scientific notation
6.8115909 × 10^7
Engineering notation
6.8115909 × 10^6
Prime Factorization
3 × 71 × 199 × 1607
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68115909
Product of the distinct prime numbers
The prime factorization of 68115909 is 3 × 71 × 199 × 1607.
Since it has a total of 4 prime factors.
9 , 10 , 90 , 20 , 630 , 209 , 768 , 2931 , 84127 , 91781 , 940049 , 688166 , 7997194 , 7262761 , 57758457 , 98120755 , 312405247 , 395526609 , 668631792 , 5007370516
n×2
136231818
n×3
204347727
n×4
272463636
n×5
340579545
n÷2
34057954.5
n÷3
22705303
n÷3
17028977.25
n÷5
13623181.8
n2
4639777058896281
n3
3.1604263192407E+23
n4
2.152753115626E+31
n5
1.4663673532345E+39
2 √n
8253.2362743351
3 √n
408.39729058808
4 √n
90.847323980044
5 √n
36.868011248534
1 , 3 , 71 , 199 , 213 , 597 , 1607 , 4821 , 14129 , 42387 , 114097 , 319793 , 342291 , 959379 , 22705303 , 68115909
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
-68115908
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 68115909 can be divided by 16 positive divisors.
The sum of these divisors (counting 68115909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011110101110111000101
3
Ternary
11202011122110110
4
Quaternary
10003311313011
5
Quinary
114414202114
6
Senary
10431543233
8
Octal
403656705
10
Decimal
68115909
12
Duodecimal
1a98ab19
16
Hexadecimal
40f5dc5
20
Vigesimal
115e9f9
36
Base36
14jykl
md5
189102e4ed0901b60ec0c7e9bd5c9a92
sha1
c95763875a502c5f77d32527680143d06fb37035
sha256
2bee3730f7084f2c6255b4e1e38df15a7946987a79998569668ad54831f3c6fd
sha512
16d1f84b32c623be2a17d7250a9a11dd744d4131532c57aff92afa25c616ae022ac96334ef78569d4d417b13cf207526c492ea54f61b2f2e7b79cd916ea9465c
ripemd-160
3c6b97190fba2a099b03eca21079bdc76307c5a6
Diameter
136231818
Circumference
427984878.61398
Area
1.4576289522523E+16
Volume
1.3238362808984E+24
Surface area
5.8305158090092E+16
Circumference
427984878.61398
Perimeter
272463636
Area
4639777058896281
Diagonal
96330442.321172
Surface area
27838662353377686
Volume
3.1604263192407E+23
Space diagonal
117980215.19174
Perimeter
204347727
Area
2.0090824004502E+15
Altitude
58990107.595869
Surface area
2.0090824004502E+15
Volume
3.7245981362925E+22
Height
32110147.440391