78312138 is an even 8-digits composite number following 78312137
and preceding 78312139 . In scientific notation, it is written as 7.8312138 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 25261920 positive integers (up to 78312138) that are relatively prime to 78312138.
78312138 has 16 divisors, whose sum is 161677056
The reverse of 78312138 is 83121387
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
seventy-eight million three hundred twelve thousand one hundred thirty-eight
Scientific notation
7.8312138 × 10^7
Engineering notation
7.8312138 × 10^6
Prime Factorization
2 × 3 × 31 × 421033
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78312138
Product of the distinct prime numbers
The prime factorization of 78312138 is 2 × 3 × 31 × 421033.
Since it has a total of 4 prime factors.
4 , 2 , 84 , 43 , 970 , 454 , 1473 , 4926 , 8326 , 36887 , 828842 , 142477 , 5067070 , 4448567 , 55062367 , 72313763 , 393774906 , 361918024 , 5501637370 , 7116331908
n×2
156624276
n×3
234936414
n×4
313248552
n×5
391560690
n÷2
39156069
n÷3
26104046
n÷3
19578034.5
n÷5
15662427.6
n2
6132790958131044
n3
4.8027197183831E+23
n4
3.7611124936134E+31
n5
2.9454076063338E+39
2 √n
8849.4145569071
3 √n
427.83504940118
4 √n
94.071326964741
5 √n
37.911050276696
1 , 2 , 3 , 6 , 31 , 62 , 93 , 186 , 421033 , 842066 , 1263099 , 2526198 , 13052023 , 26104046 , 39156069 , 78312138
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78312137
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78312138 can be divided by 16 positive divisors.
The sum of these divisors (counting 78312138) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101010101111001011001010
3
Ternary
12110100200001120
4
Quaternary
10222233023022
5
Quinary
130021442023
6
Senary
11434300110
8
Octal
452571312
10
Decimal
78312138
12
Duodecimal
22287636
16
Hexadecimal
4aaf2ca
20
Vigesimal
149906i
36
Base36
1ami16
md5
c43dd0a5a73f7afd2710853163e91804
sha1
4ff45f12c023a0c39f5cfc91f38eec3f203a7cc6
sha256
3ac5e5bbb613b3dedb0d71d5121b79b6c7fe46671a966d2be2813cb6aa0356f3
sha512
b6dfc10809fb46d1b39583d0a2a3176536505f8723cadceacedfdecb2e50822f7abe74332b8e787623198c2a00c6906362b86743f01e4599fb0c48311060ee5f
ripemd-160
df81cc3a41a640ebc36155bed739c16a2e78c011
Diameter
156624276
Circumference
492049674.85542
Area
1.9266731020066E+16
Volume
2.0117585312698E+24
Surface area
7.7066924080266E+16
Circumference
492049674.85542
Perimeter
313248552
Area
6132790958131044
Diagonal
110750087.65803
Surface area
36796745748786264
Volume
4.8027197183831E+23
Space diagonal
135640601.86535
Perimeter
234936414
Area
2.6555763829205E+15
Altitude
67820300.932673
Surface area
2.6555763829205E+15
Volume
5.6600594683451E+22
Height
36916695.886011