78842145 is an odd 8-digits composite number following 78842144
and preceding 78842146 . In scientific notation, it is written as 7.8842145 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 40692480 positive integers (up to 78842145) that are relatively prime to 78842145.
78842145 has 16 divisors, whose sum is 130217472
The reverse of 78842145 is 54124887
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-eight million eight hundred forty-two thousand one hundred forty-five
Scientific notation
7.8842145 × 10^7
Engineering notation
7.8842145 × 10^6
Prime Factorization
5 × 3 × 31 × 169553
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78842145
Product of the distinct prime numbers
The prime factorization of 78842145 is 5 × 3 × 31 × 169553.
Since it has a total of 4 prime factors.
1 , 6 , 5 , 59 , 806 , 107 , 2056 , 1026 , 23454 , 5449 , 934960 , 201365 , 2524545 , 4647649 , 79392109 , 17809101 , 621184089 , 857147158 , 6823694497 , 9525472825
n×2
157684290
n×3
236526435
n×4
315368580
n×5
394210725
n÷2
39421072.5
n÷3
26280715
n÷3
19710536.25
n÷5
15768429
n2
6216083828201025
n3
4.9008938251518E+23
n4
3.8639698159222E+31
n5
3.0464366850256E+39
2 √n
8879.3099394041
3 √n
428.79805862818
4 √n
94.230090413859
5 √n
37.962227392425
1 , 3 , 5 , 15 , 31 , 93 , 155 , 465 , 169553 , 508659 , 847765 , 2543295 , 5256143 , 15768429 , 26280715 , 78842145
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
-78842144
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 78842145 can be divided by 16 positive divisors.
The sum of these divisors (counting 78842145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101100110000100100100001
3
Ternary
12111100121002110
4
Quaternary
10230300210201
5
Quinary
130140422040
6
Senary
11453505533
8
Octal
454604441
10
Decimal
78842145
12
Duodecimal
224a22a9
16
Hexadecimal
4b30921
20
Vigesimal
14cf575
36
Base36
1axuzl
md5
7b6fea6a9036921f50bc82c710cc7883
sha1
4f59a545416c57c84f553a148b335b9a1f92deeb
sha256
46ec6fc22b094e41b08d85c918311e088522c2cbd2f8b8ce518e317b452e67b2
sha512
5a0fee653e7809fab034eee1da597bd347b7f4bb4302e65155eb4abd05a2d55f2e03d85e19fbb7afd0a0e9d07fcd01255ee8d5f438b5db88fa404ce3798f3623
ripemd-160
9019785a185fd35f952948edfe134ddce857579f
Diameter
157684290
Circumference
495379807.05052
Area
1.9528403288775E+16
Volume
2.0528816049494E+24
Surface area
7.8113613155099E+16
Circumference
495379807.05052
Perimeter
315368580
Area
6216083828201025
Diagonal
111499630.74559
Surface area
37296502969206150
Volume
4.9008938251518E+23
Space diagonal
136558600.91771
Perimeter
236526435
Area
2.6916432536379E+15
Altitude
68279300.458856
Surface area
2.6916432536379E+15
Volume
5.7757587627335E+22
Height
37166543.581862