78115215 is an odd 8-digits composite number following 78115214
and preceding 78115216 . In scientific notation, it is written as 7.8115215 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 41661440 positive integers (up to 78115215) that are relatively prime to 78115215.
78115215 has 8 divisors, whose sum is 124984368
The reverse of 78115215 is 51251187
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-eight million one hundred fifteen thousand two hundred fifteen
Scientific notation
7.8115215 × 10^7
Engineering notation
7.8115215 × 10^6
Prime Factorization
5 × 3 × 5207681
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78115215
Product of the distinct prime numbers
The prime factorization of 78115215 is 5 × 3 × 5207681.
Since it has a total of 3 prime factors.
4 , 5 , 89 , 99 , 72 , 71 , 599 , 9360 , 41545 , 78100 , 971862 , 470271 , 3094863 , 2466344 , 18662777 , 84632671 , 63566624 , 435222001 , 9913944662 , 2863939030
n×2
156230430
n×3
234345645
n×4
312460860
n×5
390576075
n÷2
39057607.5
n÷3
26038405
n÷3
19528803.75
n÷5
15623043
n2
6101986814496225
n3
4.7665801194154E+23
n4
3.7234243084286E+31
n5
2.9085609038912E+39
2 √n
8838.2812243105
3 √n
427.47613833505
4 √n
94.012133388784
5 √n
37.891964912859
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78115214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78115215 can be divided by 8 positive divisors.
The sum of these divisors (counting 78115215) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101001111111000110001111
3
Ternary
12102222122221010
4
Quaternary
10221333012033
5
Quinary
124444141330
6
Senary
11430140303
8
Octal
451770617
10
Decimal
78115215
12
Duodecimal
221b1693
16
Hexadecimal
4a7f18f
20
Vigesimal
148480f
36
Base36
1aia33
md5
ca07c0dd4da6a6519860e82ff5b9d9d1
sha1
904e34966135181cf2264f61eb3b9eed920b208e
sha256
2993c370b832d01b2063944d2547c4f7c004c93be54eb57827e01562d1f73aeb
sha512
1895ffaf19af630c89606b832f5e4af16039d0c00a2242a6c54054850b7b7f107aa0d8f358dcf7454dc158c35259ec1dae8be9ec079d1a180f91e2e1fe77c655
ripemd-160
a9f5711a6430f0f6dbc38ea1837cbf9de6a7e28d
Diameter
156230430
Circumference
490812371.15517
Area
1.9169956948723E+16
Volume
1.9966204114537E+24
Surface area
7.6679827794892E+16
Circumference
490812371.15517
Perimeter
312460860
Area
6101986814496225
Diagonal
110471596.48069
Surface area
36611920886977350
Volume
4.7665801194154E+23
Space diagonal
135299521.22417
Perimeter
234345645
Area
2.6422377974557E+15
Altitude
67649760.612083
Surface area
2.6422377974557E+15
Volume
5.6174685425127E+22
Height
36823865.493563