78291221 is an odd 8-digits composite number following 78291220
and preceding 78291222 . In scientific notation, it is written as 7.8291221 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 78209292 positive integers (up to 78291221) that are relatively prime to 78291221.
78291221 has 4 divisors, whose sum is 78373152
The reverse of 78291221 is 12219287
Previous prime number is 967
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-eight million two hundred ninety-one thousand two hundred twenty-one
Scientific notation
7.8291221 × 10^7
Engineering notation
7.8291221 × 10^6
Prime Factorization
967 × 80963
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78291221
Product of the distinct prime numbers
The prime factorization of 78291221 is 967 × 80963.
Since it has a total of 2 prime factors.
10 , 8 , 12 , 38 , 598 , 791 , 1583 , 4938 , 69653 , 97730 , 260551 , 392492 , 3030709 , 9643149 , 49806380 , 39190450 , 293367151 , 501957049 , 4148028957 , 5774075910
n×2
156582442
n×3
234873663
n×4
313164884
n×5
391456105
n÷2
39145610.5
n÷3
26097073.666667
n÷3
19572805.25
n÷5
15658244.2
n2
6129515285670841
n3
4.7988723585333E+23
n4
3.7570957637272E+31
n5
2.9414761475613E+39
2 √n
8848.232648388
3 √n
427.79695474208
4 √n
94.065044774284
5 √n
37.909024868645
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
-78291220
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 78291221 can be divided by 4 positive divisors.
The sum of these divisors (counting 78291221) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101010101010000100010101
3
Ternary
12110022121100212
4
Quaternary
10222222010111
5
Quinary
130020304341
6
Senary
11434015205
8
Octal
452520425
10
Decimal
78291221
12
Duodecimal
22277505
16
Hexadecimal
4aaa115
20
Vigesimal
1496811
36
Base36
1am1w5
md5
98c908615610bc0ffc1cd1363d719e74
sha1
ceff91f7aec7387f66f80411ee3336ddf5d73527
sha256
ebb5159c8def488ae3f822078e5957fe0ee33f70a1a90b3eb2d5ea718bd40ddf
sha512
abb6f032c6af397193015339e0f89a05ddeb9b496b6629fe761d2171f98daafbf4d2fdc8455271305d0c6ce6088ecd206109824aff05822b725c6a1cc8a0fcda
ripemd-160
e5ae31ee96359e09fb1c5b06db2b5ad67cff51e1
Diameter
156582442
Circumference
491918249.46835
Area
1.925644019153E+16
Volume
2.0101469529445E+24
Surface area
7.7025760766119E+16
Circumference
491918249.46835
Perimeter
313164884
Area
6129515285670841
Diagonal
110720506.55295
Surface area
36777091714025046
Volume
4.7988723585333E+23
Space diagonal
135604372.5586
Perimeter
234873663
Area
2.654157975138E+15
Altitude
67802186.279302
Surface area
2.654157975138E+15
Volume
5.6555253112793E+22
Height
36906835.51765