78312281 is an odd 8-digits composite number following 78312280
and preceding 78312282 . In scientific notation, it is written as 7.8312281 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 74190564 positive integers (up to 78312281) that are relatively prime to 78312281.
78312281 has 4 divisors, whose sum is 82434000
The reverse of 78312281 is 18221387
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
seventy-eight million three hundred twelve thousand two hundred eighty-one
Scientific notation
7.8312281 × 10^7
Engineering notation
7.8312281 × 10^6
Prime Factorization
19 × 4121699
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78312281
Product of the distinct prime numbers
The prime factorization of 78312281 is 19 × 4121699.
Since it has a total of 2 prime factors.
4 , 5 , 1 , 76 , 670 , 716 , 2031 , 5401 , 86055 , 18499 , 287836 , 841397 , 7011606 , 5649368 , 65538491 , 18613722 , 757006126 , 425064204 , 480164407 , 1531428868
n×2
156624562
n×3
234936843
n×4
313249124
n×5
391561405
n÷2
39156140.5
n÷3
26104093.666667
n÷3
19578070.25
n÷5
15662456.2
n2
6132813355422961
n3
4.8027460281044E+23
n4
3.7611399652454E+31
n5
2.9454344983863E+39
2 √n
8849.422636534
3 √n
427.83530981366
4 √n
94.071369908883
5 √n
37.911064121999
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
-78312280
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 78312281 can be divided by 4 positive divisors.
The sum of these divisors (counting 78312281) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101010101111001101011001
3
Ternary
12110100200020212
4
Quaternary
10222233031121
5
Quinary
130021443111
6
Senary
11434300505
8
Octal
452571531
10
Decimal
78312281
12
Duodecimal
22287735
16
Hexadecimal
4aaf359
20
Vigesimal
14990e1
36
Base36
1ami55
md5
06eb04f2f2d68b0b201d42c53a742395
sha1
ea2747df9f1ed5074f4670dd7f95b187a59048ff
sha256
18d942e1397dbe07e366a7d86ed4f3d43fb1805732642efc9914cdd262d3e84a
sha512
4d6617949b64b6a5a55d638450cedf1d9f933491c578d1ee6591413cf317c0f365ebbd9dc68847836cdad6f6aa385970cb2a62cb2e0b4d27638d4865035a2bdf
ripemd-160
5579a61caf85ff16d4f83b8208d73091afa601d3
Diameter
156624562
Circumference
492050573.35092
Area
1.9266801383234E+16
Volume
2.01176955186E+24
Surface area
7.7067205532937E+16
Circumference
492050573.35092
Perimeter
313249124
Area
6132813355422961
Diagonal
110750289.89057
Surface area
36796880132537766
Volume
4.8027460281044E+23
Space diagonal
135640849.54861
Perimeter
234936843
Area
2.6555860812324E+15
Altitude
67820424.774305
Surface area
2.6555860812324E+15
Volume
5.6600904746489E+22
Height
36916763.296858