78729842 is an even 8-digits composite number following 78729841
and preceding 78729843 . In scientific notation, it is written as 7.8729842 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 39364920 positive integers (up to 78729842) that are relatively prime to 78729842.
78729842 has 4 divisors, whose sum is 118094766
The reverse of 78729842 is 24892787
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-eight million seven hundred twenty-nine thousand eight hundred forty-two
Scientific notation
7.8729842 × 10^7
Engineering notation
7.8729842 × 10^6
Prime Factorization
2 × 39364921
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78729842
Product of the distinct prime numbers
The prime factorization of 78729842 is 2 × 39364921.
Since it has a total of 2 prime factors.
8 , 4 , 63 , 9 , 925 , 910 , 5919 , 7925 , 80166 , 67167 , 214059 , 892168 , 5216282 , 5853915 , 40985321 , 49416303 , 422674181 , 594991754 , 6941903845 , 3391088420
n×2
157459684
n×3
236189526
n×4
314919368
n×5
393649210
n÷2
39364921
n÷3
26243280.666667
n÷3
19682460.5
n÷5
15745968.4
n2
6198388021344964
n3
4.8799810957518E+23
n4
3.8420014063153E+31
n5
3.0248016368298E+39
2 √n
8872.9838273266
3 √n
428.59436811604
4 √n
94.196517065795
5 √n
37.951406522069
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
-78729841
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 78729842 can be divided by 4 positive divisors.
The sum of these divisors (counting 78729842) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101100010101001001110010
3
Ternary
12111010220001002
4
Quaternary
10230111021302
5
Quinary
130123323332
6
Senary
11451242002
8
Octal
454251162
10
Decimal
78729842
12
Duodecimal
22449302
16
Hexadecimal
4b15272
20
Vigesimal
14c14c2
36
Base36
1avgc2
md5
45dca6dbdc8f74bb116516254a8313ef
sha1
7aea9065a956f246e992a9c97256e165928761ad
sha256
dd693940715388194a00e9e45a35d39a176b3ec69007bd08495c6c7b3791d78d
sha512
46c0e4e09337de8e1f4422f88611f711a1b4b25dcc8d698ca14ccc9c319fb2392197805f85428e96e40bf3f5540658d52e27eb40981acea0276684f5fa20e848
ripemd-160
e3210d5efee1274caaceb5ecaa9b7dc9a5d73d9e
Diameter
157459684
Circumference
494674186.49097
Area
1.9472810271956E+16
Volume
2.0441217013428E+24
Surface area
7.7891241087825E+16
Circumference
494674186.49097
Perimeter
314919368
Area
6198388021344964
Diagonal
111340810.31989
Surface area
37190328128069784
Volume
4.8799810957518E+23
Space diagonal
136364086.41587
Perimeter
236189526
Area
2.683980744499E+15
Altitude
68182043.207935
Surface area
2.683980744499E+15
Volume
5.7511128747804E+22
Height
37113603.439964