78491421 is an odd 8-digits composite number following 78491420
and preceding 78491422 . In scientific notation, it is written as 7.8491421 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 52327608 positive integers (up to 78491421) that are relatively prime to 78491421.
78491421 has 4 divisors, whose sum is 87212700
The reverse of 78491421 is 12419487
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-eight million four hundred ninety-one thousand four hundred twenty-one
Scientific notation
7.8491421 × 10^7
Engineering notation
7.8491421 × 10^6
Prime Factorization
9 × 8721269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78491421
Product of the distinct prime numbers
The prime factorization of 78491421 is 9 × 8721269.
Since it has a total of 2 prime factors.
2 , 10 , 10 , 25 , 93 , 78 , 4176 , 5929 , 232 , 35720 , 563857 , 732728 , 9341085 , 8958449 , 23437579 , 40272796 , 463168357 , 844041702 , 930848033 , 635668984
n×2
156982842
n×3
235474263
n×4
313965684
n×5
392457105
n÷2
39245710.5
n÷3
26163807
n÷3
19622855.25
n÷5
15698284.2
n2
6160903170599241
n3
4.8357804450374E+23
n4
3.79567278775E+31
n5
2.9792775076153E+39
2 √n
8859.5384191277
3 √n
428.16128700191
4 √n
94.125121084266
5 √n
37.928392649052
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
-78491420
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 78491421 can be divided by 4 positive divisors.
The sum of these divisors (counting 78491421) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011011010111100011101
3
Ternary
12110200202222200
4
Quaternary
10223122330131
5
Quinary
130043211141
6
Senary
11442202113
8
Octal
453327435
10
Decimal
78491421
12
Duodecimal
22353339
16
Hexadecimal
4adaf1d
20
Vigesimal
14ab8b1
36
Base36
1aqcd9
md5
538bf420998dfd114cec01b42e136fef
sha1
3d7acf46cbf8484f9a7a6ee2dc488c746ebe43bd
sha256
4685d045e0b6f863156a385f96a61ef17fb80efa445d4de284e7970949f590bc
sha512
4bcf76d4a947d231a3676407c2c7548bc6d887900f624a21a823cb39fe886f1887dfcf5165ea0dbe6df664dd68313fbb634a9115c7ba55c3e50aa79debf2a67f
ripemd-160
e1fa1b5886355fce72f7dffd6e07dabd43b6f817
Diameter
156982842
Circumference
493176143.16685
Area
1.9355048140233E+16
Volume
2.025606976067E+24
Surface area
7.7420192560931E+16
Circumference
493176143.16685
Perimeter
313965684
Area
6160903170599241
Diagonal
111003632.10814
Surface area
36965419023595446
Volume
4.8357804450374E+23
Space diagonal
135951129.13028
Perimeter
235474263
Area
2.6677493279975E+15
Altitude
67975564.565139
Surface area
2.6677493279975E+15
Volume
5.6990219083587E+22
Height
37001210.702712