78868909 is an odd 8-digits composite number following 78868908
and preceding 78868910 . In scientific notation, it is written as 7.8868909 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 64662576 positive integers (up to 78868909) that are relatively prime to 78868909.
78868909 has 8 divisors, whose sum is 94055040
The reverse of 78868909 is 90986887
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
seventy-eight million eight hundred sixty-eight thousand nine hundred nine
Scientific notation
7.8868909 × 10^7
Engineering notation
7.8868909 × 10^6
Prime Factorization
7 × 23 × 489869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78868909
Product of the distinct prime numbers
The prime factorization of 78868909 is 7 × 23 × 489869.
Since it has a total of 3 prime factors.
8 , 7 , 15 , 90 , 169 , 719 , 1075 , 9440 , 76606 , 47642 , 120469 , 453776 , 3020070 , 3599387 , 65281065 , 53545585 , 800780371 , 588768561 , 7163701164 , 8194678859
n×2
157737818
n×3
236606727
n×4
315475636
n×5
394344545
n÷2
39434454.5
n÷3
26289636.333333
n÷3
19717227.25
n÷5
15773781.8
n2
6220304806850281
n3
4.9058865376374E+23
n4
3.8692191890125E+31
n5
3.0516109611928E+39
2 √n
8880.8169106226
3 √n
428.84657351357
4 √n
94.238086306029
5 √n
37.964804397709
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
-78868908
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 78868909 can be divided by 8 positive divisors.
The sum of these divisors (counting 78868909) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101100110111000110101101
3
Ternary
12111101221210201
4
Quaternary
10230313012231
5
Quinary
130142301114
6
Senary
11454233501
8
Octal
454670655
10
Decimal
78868909
12
Duodecimal
224b5891
16
Hexadecimal
4b371ad
20
Vigesimal
14cic59
36
Base36
1ayfn1
md5
09994e3012d5acf60c3dc821b96bb73d
sha1
eb10fe915dd9b42f85d4ecac9543c11f58a3b627
sha256
717d8fb7ba7305bac153b3acdbb0f567bd17a0dd9c4650d8f783470f262d2369
sha512
fcd33f2a3dcac1b9c716361e4216958c40e14853a6c96edc2f0d76cb90ebb459f4e223ae877654bcd722a87184e5d7aea20c2c4b3b37b9f15da9727b9639a83a
ripemd-160
3d123880779608c6a520dee9a49fb0ae2f7466c0
Diameter
157737818
Circumference
495547970.22208
Area
1.954166388429E+16
Volume
2.0549729474649E+24
Surface area
7.816665553716E+16
Circumference
495547970.22208
Perimeter
315475636
Area
6220304806850281
Diagonal
111537480.75737
Surface area
37321828841101686
Volume
4.9058865376374E+23
Space diagonal
136604957.52553
Perimeter
236606727
Area
2.6934709910074E+15
Altitude
68302478.762763
Surface area
2.6934709910074E+15
Volume
5.7816427308253E+22
Height
37179160.252456