78908021 is an odd 8-digits composite number following 78908020
and preceding 78908022 . In scientific notation, it is written as 7.8908021 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 77852880 positive integers (up to 78908021) that are relatively prime to 78908021.
78908021 has 8 divisors, whose sum is 79970304
The reverse of 78908021 is 12080987
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
seventy-eight million nine hundred eight thousand twenty-one
Scientific notation
7.8908021 × 10^7
Engineering notation
7.8908021 × 10^6
Prime Factorization
127 × 191 × 3253
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78908021
Product of the distinct prime numbers
The prime factorization of 78908021 is 127 × 191 × 3253.
Since it has a total of 3 prime factors.
1 , 6 , 5 , 18 , 377 , 189 , 7 , 3594 , 64532 , 3809 , 794720 , 163821 , 777380 , 5968007 , 35521484 , 27131365 , 118564592 , 522255212 , 9513890870 , 2224938980
n×2
157816042
n×3
236724063
n×4
315632084
n×5
394540105
n÷2
39454010.5
n÷3
26302673.666667
n÷3
19727005.25
n÷5
15781604.2
n2
6226475778136441
n3
4.9131888145718E+23
n4
3.876900061572E+31
n5
3.0591851147342E+39
2 √n
8883.0186873607
3 √n
428.9174517828
4 √n
94.249767571919
5 √n
37.96856908772
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
-78908020
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 78908021 can be divided by 8 positive divisors.
The sum of these divisors (counting 78908021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101101000000101001110101
3
Ternary
12111110221110022
4
Quaternary
10231000221311
5
Quinary
130200024041
6
Senary
11455134525
8
Octal
455005165
10
Decimal
78908021
12
Duodecimal
22514445
16
Hexadecimal
4b40a75
20
Vigesimal
14d3a11
36
Base36
1az9th
md5
efe9271ed814c5bcd7005af98c8c9240
sha1
5218f920e6cb3bee3f0c8ccda6c302c987b575dc
sha256
2daa717f7d69a0b21acbe85eb8ca950dcf0054d27ae970da651e26c69fa98975
sha512
0b27d6f4bdf14396be18da772f905b9f989768a514be4789c8776a66f545bf1f2e34e41a18641c80b45fceb8020ce5d95c75ada620e9d477801959656e48a6d9
ripemd-160
bdda0c4388a8433e8fe2842bcd2460f16e0d2830
Diameter
157816042
Circumference
495793718.16582
Area
1.9561050562348E+16
Volume
2.0580317180744E+24
Surface area
7.8244202249393E+16
Circumference
495793718.16582
Perimeter
315632084
Area
6226475778136441
Diagonal
111592793.47822
Surface area
37358854668818646
Volume
4.9131888145718E+23
Space diagonal
136672701.49671
Perimeter
236724063
Area
2.6961430999573E+15
Altitude
68336350.748356
Surface area
2.6961430999573E+15
Volume
5.7902485467227E+22
Height
37197597.826074