81874418 is an even 8-digits composite number following 81874417
and preceding 81874419 . In scientific notation, it is written as 8.1874418 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 40243300 positive integers (up to 81874418) that are relatively prime to 81874418.
81874418 has 8 divisors, whose sum is 124893360
The reverse of 81874418 is 81447818
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million eight hundred seventy-four thousand four hundred eighteen
Scientific notation
8.1874418 × 10^7
Engineering notation
8.1874418 × 10^6
Prime Factorization
2 × 59 × 693851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81874418
Product of the distinct prime numbers
The prime factorization of 81874418 is 2 × 59 × 693851.
Since it has a total of 3 prime factors.
2 , 7 , 5 , 25 , 240 , 40 , 5332 , 7103 , 98869 , 30012 , 36883 , 674013 , 7415320 , 4448014 , 55942634 , 16082616 , 406418222 , 466904796 , 6522587041 , 2996686146
n×2
163748836
n×3
245623254
n×4
327497672
n×5
409372090
n÷2
40937209
n÷3
27291472.666667
n÷3
20468604.5
n÷5
16374883.6
n2
6703420322838724
n3
5.4883863754179E+23
n4
4.4935844024647E+31
n5
3.6790960768568E+39
2 √n
9048.4483752741
3 √n
434.2262512468
4 √n
95.123332444117
5 √n
38.249841967657
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81874417
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81874418 can be divided by 8 positive divisors.
The sum of these divisors (counting 81874418) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000010100110111110010
3
Ternary
12201001122120212
4
Quaternary
10320110313302
5
Quinary
131424440133
6
Senary
12042504122
8
Octal
470246762
10
Decimal
81874418
12
Duodecimal
23505042
16
Hexadecimal
4e14df2
20
Vigesimal
15be60i
36
Base36
1cqupe
md5
268754200b7a1eeeafdbee1bd819feff
sha1
86426d8a21178761119ffa6325e420bb7d604d21
sha256
76d6b8373a6fc858b0de3c3b122354b71dc2ced5697c2b18b1dbc5f7a8a43c09
sha512
70bb022b1670b36694f4cf914b8e7ba25392b8f659939187ef0ae5263ba25cc607b2bdec6d3da76b7feeee132440959fe176ce2a821a427052005ea235746cfa
ripemd-160
2711255c760a4d1ecae85956816148c98c3b9b39
Diameter
163748836
Circumference
514432140.21148
Area
2.1059416040155E+16
Volume
2.2989699089434E+24
Surface area
8.4237664160619E+16
Circumference
514432140.21148
Perimeter
327497672
Area
6703420322838724
Diagonal
115787912.347
Surface area
40220521937032344
Volume
5.4883863754179E+23
Space diagonal
141810651.81613
Perimeter
245623254
Area
2.9026661459116E+15
Altitude
70905325.908066
Surface area
2.9026661459116E+15
Volume
6.4681253730498E+22
Height
38595970.782335