78394021 is an odd 8-digits composite number following 78394020
and preceding 78394022 . In scientific notation, it is written as 7.8394021 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 73064640 positive integers (up to 78394021) that are relatively prime to 78394021.
78394021 has 8 divisors, whose sum is 83813184
The reverse of 78394021 is 12049387
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-eight million three hundred ninety-four thousand twenty-one
Scientific notation
7.8394021 × 10^7
Engineering notation
7.8394021 × 10^6
Prime Factorization
17 × 103 × 44771
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78394021
Product of the distinct prime numbers
The prime factorization of 78394021 is 17 × 103 × 44771.
Since it has a total of 3 prime factors.
1 , 3 , 55 , 4 , 298 , 185 , 2659 , 1421 , 15028 , 27351 , 191643 , 645713 , 7078695 , 6017153 , 31142124 , 94911725 , 837329442 , 996098496 , 5971100588 , 1539163906
n×2
156788042
n×3
235182063
n×4
313576084
n×5
391970105
n÷2
39197010.5
n÷3
26131340.333333
n÷3
19598505.25
n÷5
15678804.2
n2
6145622528548441
n3
4.817800615611E+23
n4
3.7768676263402E+31
n5
2.9608384001353E+39
2 √n
8854.0398124246
3 √n
427.98411192368
4 √n
94.09590752219
5 √n
37.918974905229
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
-78394020
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 78394021 can be divided by 8 positive divisors.
The sum of these divisors (counting 78394021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101011000011001010100101
3
Ternary
12110111211101021
4
Quaternary
10223003022211
5
Quinary
130032102041
6
Senary
11440131141
8
Octal
453031245
10
Decimal
78394021
12
Duodecimal
22306ab1
16
Hexadecimal
4ac32a5
20
Vigesimal
149j511
36
Base36
1ao97p
md5
a17fc871b3d5e8424093c2ee0bc47c5d
sha1
e880e6e65cdec65ad3512c25f46780a3c0a67648
sha256
20449b29387b5c2c4eff5ad83ce1cd2cddc8803e232200546e0fb7da079df140
sha512
289da41f438cd022546de422440ae68fb257cbbf178e0b49603d1dc1c4e72c5e6d0d0875ae1693c5c456c17eb1270653bb2fdd09017b0b419ab26daf9d6bb421
ripemd-160
0f588b349f3eb328bbb4d0bac9a3e96849050127
Diameter
156788042
Circumference
492564160.91793
Area
1.9307042587424E+16
Volume
2.0180756027285E+24
Surface area
7.7228170349695E+16
Circumference
492564160.91793
Perimeter
313576084
Area
6145622528548441
Diagonal
110865887.70716
Surface area
36873735171290646
Volume
4.817800615611E+23
Space diagonal
135782427.38162
Perimeter
235182063
Area
2.6611326158965E+15
Altitude
67891213.690811
Surface area
2.6611326158965E+15
Volume
5.6778324761721E+22
Height
36955295.902387