78978090 is an even 8-digits composite number following 78978089
and preceding 78978091 . In scientific notation, it is written as 7.8978090 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 18957312 positive integers (up to 78978090) that are relatively prime to 78978090.
78978090 has 16 divisors, whose sum is 126706944
The reverse of 78978090 is 09087987
Previous prime number is 391
Is Prime? no
Number parity even
Number length 8
Sum of Digits 48
Digital Root 3
Name
seventy-eight million nine hundred seventy-eight thousand ninety
Scientific notation
7.8978090 × 10^7
Engineering notation
7.8978090 × 10^6
Prime Factorization
2 × 15 × 391 × 6733
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78978090
Product of the distinct prime numbers
The prime factorization of 78978090 is 2 × 15 × 391 × 6733.
Since it has a total of 4 prime factors.
6 , 7 , 2 , 25 , 218 , 815 , 4674 , 9365 , 79453 , 58226 , 607966 , 966620 , 5597832 , 9218956 , 14018387 , 42353187 , 286744958 , 53464174 , 1001733169 , 5437497803
n×2
157956180
n×3
236934270
n×4
315912360
n×5
394890450
n÷2
39489045
n÷3
26326030
n÷3
19744522.5
n÷5
15795618
n2
6237538700048100
n3
4.9262889283088E+23
n4
3.8906889034598E+31
n5
3.0727917837945E+39
2 √n
8886.96179805
3 √n
429.04437139196
4 √n
94.27068366173
5 √n
37.97530978448
1 , 2 , 15 , 30 , 391 , 782 , 5865 , 6733 , 11730 , 13466 , 100995 , 201990 , 2632603 , 5265206 , 39489045 , 78978090
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
-78978089
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 78978090 can be divided by 16 positive divisors.
The sum of these divisors (counting 78978090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101101010001110000101010
3
Ternary
12111121111120110
4
Quaternary
10231101300222
5
Quinary
130204244330
6
Senary
11500435150
8
Octal
455216052
10
Decimal
78978090
12
Duodecimal
22548ab6
16
Hexadecimal
4b51c2a
20
Vigesimal
14dc54a
36
Base36
1b0rvu
md5
e92c6c7e93113a51bee80ae8dae6935f
sha1
e1b763c33b1fc7c3b6a42a8d899053d0917e5d98
sha256
4f521cf0f09f801e0f2d53f5c074785cc89bf6f489598a26491d5de6d8077d2e
sha512
815dda3572cb545c7faf98c15d106f6db35d85f0a22fec19c999028071cfc0dc8bed3a1cf00201c748baffe095ae14a710087a80f1f9e2e3c0baf8c268a5e8f1
ripemd-160
fb5c354117cda9a0cde5f7fe798cc8a8c0e3b973
Diameter
157956180
Circumference
496233974.67711
Area
1.9595805756553E+16
Volume
2.0635190808848E+24
Surface area
7.8383223026213E+16
Circumference
496233974.67711
Perimeter
315912360
Area
6237538700048100
Diagonal
111691886.00832
Surface area
37425232200288600
Volume
4.9262889283088E+23
Space diagonal
136794064.56475
Perimeter
236934270
Area
2.7009334856651E+15
Altitude
68397032.282374
Surface area
2.7009334856651E+15
Volume
5.805687178819E+22
Height
37230628.669441