42781808 is an even 8-digits composite number following 42781807
and preceding 42781809 . In scientific notation, it is written as 4.2781808 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors.
There are 21362880 positive integers (up to 42781808) that are relatively prime to 42781808.
42781808 has 20 divisors, whose sum is 82998408
The reverse of 42781808 is 80818724
Previous prime number is 1123
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
forty-two million seven hundred eighty-one thousand eight hundred eight
Scientific notation
4.2781808 × 10^7
Engineering notation
4.2781808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1123 × 2381
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5347726
Product of the distinct prime numbers
The prime factorization of 42781808 is 2 × 2 × 2 × 2 × 1123 × 2381.
Since it has a total of 6 prime factors.
4 , 1 , 67 , 95 , 691 , 8 , 8877 , 9332 , 8844 , 7955 , 231759 , 542205 , 446562 , 951408 , 22684377 , 31249919 , 708339941 , 676050068 , 4620263020 , 2790326819
n×2
85563616
n×3
128345424
n×4
171127232
n×5
213909040
n÷2
21390904
n÷3
14260602.666667
n÷3
10695452
n÷5
8556361.6
n2
1830283095748864
n3
7.8302819987974E+22
n4
3.349936210584E+30
n5
1.4331632777345E+38
2 √n
6540.7803815753
3 √n
349.74623237669
4 √n
80.875091230708
5 √n
33.593234908662
1 , 2 , 4 , 8 , 16 , 1123 , 2246 , 2381 , 4492 , 4762 , 8984 , 9524 , 17968 , 19048 , 38096 , 2673863 , 5347726 , 10695452 , 21390904 , 42781808
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-42781807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 42781808 can be divided by 20 positive divisors.
The sum of these divisors (counting 42781808) is 1, the average is 0.05.
Base
System
Value
2
Binary
10100011001100110001110000
3
Ternary
2222111112121102
4
Quaternary
2203030301300
5
Quinary
41423004213
6
Senary
4124543532
8
Octal
243146160
10
Decimal
42781808
12
Duodecimal
123b1ba8
16
Hexadecimal
28ccc70
20
Vigesimal
d77ea8
36
Base36
pgynk
md5
ad7fd7c8a70d4cb04259802ba7ae5af2
sha1
89dfd7ef9d8b511d15bd1079dc79f0499f7480fd
sha256
b16724ec5873877048eea7d39175ac3c3b04750b8b192f442d15a9a36c326b08
sha512
293fc44fece9acc4f9c30da5ed035e57bb26285522c6bc6487315592d93e9d49d5ff09f4756d2fcc2b30bb6a4508bfb40bd4e1d7fbad86feda1c5ed8f50703ca
ripemd-160
b47607a2776735d9267bc5585bfda2d8ee157b19
Diameter
85563616
Circumference
268806027.44018
Area
5.7500039275942E+15
Volume
3.2799408537278E+23
Surface area
2.3000015710377E+16
Circumference
268806027.44018
Perimeter
171127232
Area
1830283095748864
Diagonal
60502613.096442
Surface area
10981698574493184
Volume
7.8302819987974E+22
Space diagonal
74100265.095657
Perimeter
128345424
Area
7.9253582851787E+14
Altitude
37050132.547828
Surface area
7.9253582851787E+14
Volume
9.2280758332543E+21
Height
20167537.698814