78978091 is an odd 8-digits composite number following 78978090
and preceding 78978092 . In scientific notation, it is written as 7.8978091 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 76121568 positive integers (up to 78978091) that are relatively prime to 78978091.
78978091 has 4 divisors, whose sum is 79002000
The reverse of 78978091 is 19087987
Previous prime number is 3959
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
seventy-eight million nine hundred seventy-eight thousand ninety-one
Scientific notation
7.8978091 × 10^7
Engineering notation
7.8978091 × 10^6
Prime Factorization
3959 × 19949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78978091
Product of the distinct prime numbers
The prime factorization of 78978091 is 3959 × 19949.
Since it has a total of 2 prime factors.
5 , 1 , 9 , 75 , 329 , 70 , 6308 , 9279 , 29190 , 26650 , 62155 , 9380 , 4310799 , 118945 , 80628573 , 26062360 , 3210550 , 604654329 , 9085958528 , 3043541525
n×2
157956182
n×3
236934273
n×4
315912364
n×5
394890455
n÷2
39489045.5
n÷3
26326030.333333
n÷3
19744522.75
n÷5
15795618.2
n2
6237538858004281
n3
4.926289115435E+23
n4
3.8906891005113E+31
n5
3.0727919783289E+39
2 √n
8886.9618543122
3 √n
429.04437320277
4 √n
94.270683960138
5 √n
37.975309880647
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78978090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78978091 can be divided by 4 positive divisors.
The sum of these divisors (counting 78978091) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101101010001110000101011
3
Ternary
12111121111120111
4
Quaternary
10231101300223
5
Quinary
130204244331
6
Senary
11500435151
8
Octal
455216053
10
Decimal
78978091
12
Duodecimal
22548ab7
16
Hexadecimal
4b51c2b
20
Vigesimal
14dc54b
36
Base36
1b0rvv
md5
71430d15b6c55178a7b3141f8c7e2cc8
sha1
b3f5fa4a527a1b698a0fb61893d475da2b383822
sha256
7398a6564f04d8fd9756bf3a5a6dec2f85f138973f0477717f5e62fa718e314f
sha512
f002adacd20e41a4ee40457d69c20e9b45a2e44996669859308c9141620e2235f0db8888a4eb8526e1569d82fb53e898e2037d30f59a61871b5fed7982f6657f
ripemd-160
93cf1bf186502c55192b9e023367f34d291eedde
Diameter
157956182
Circumference
496233980.96029
Area
1.9595806252787E+16
Volume
2.063519159268E+24
Surface area
7.8383225011148E+16
Circumference
496233980.96029
Perimeter
315912364
Area
6237538858004281
Diagonal
111691887.42254
Surface area
37425233148025686
Volume
4.926289115435E+23
Space diagonal
136794066.2968
Perimeter
236934273
Area
2.7009335540621E+15
Altitude
68397033.148399
Surface area
2.7009335540621E+15
Volume
5.8056873993493E+22
Height
37230629.140845