81874428 is an even 8-digits composite number following 81874427
and preceding 81874429 . In scientific notation, it is written as 8.1874428 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 27270576 positive integers (up to 81874428) that are relatively prime to 81874428.
81874428 has 24 divisors, whose sum is 191186688
The reverse of 81874428 is 82447818
Previous prime number is 2683
Is Prime? no Number parity even Number length 8 Sum of Digits 42 Digital Root 6
Name
eighty-one million eight hundred seventy-four thousand four hundred twenty-eight
Scientific notation
8.1874428 × 10^7
Engineering notation
8.1874428 × 10^6
Prime Factorization
2 × 2 × 3 × 2683 × 2543
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
40937214 Product of the distinct prime numbers
The prime factorization of 81874428 is 2 × 2 × 3 × 2683 × 2543.
Since it has a total of 5 prime factors.
1 , 1 , 81 , 56 , 542 , 29 , 7233 , 9351 , 51680 , 96304 , 50105 , 789611 , 7730598 , 7284196 , 80232057 , 16238257 , 119420128 , 475892230 , 5666068444 , 6065915283
n×2
163748856
n×3
245623284
n×4
327497712
n×5
409372140
n÷2
40937214
n÷3
27291476
n÷3
20468607
n÷5
16374885.6
n2
6703421960327184
n3
5.4883883864443E+23
n4
4.4935865978197E+31
n5
3.6790983236495E+39
2 √n9048.448927855
3 √n434.22626892534
4 √n95.123335348667
5 √n38.249842902011
1 , 2 , 3 , 4 , 6 , 12 , 2543 , 2683 , 5086 , 5366 , 7629 , 8049 , 10172 , 10732 , 15258 , 16098 , 30516 , 32196 , 6822869 , 13645738 , 20468607 , 27291476 , 40937214 , 81874428
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81874427 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81874428 can be divided by 24 positive divisors.
The sum of these divisors (counting 81874428) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100111000010100110111111100
3
Ternary
12201001122121020
4
Quaternary
10320110313330
5
Quinary
131424440203
6
Senary
12042504140
8
Octal
470246774
10
Decimal
81874428
12
Duodecimal
23505050
16
Hexadecimal
4e14dfc
20
Vigesimal
15be618
36
Base36
1cqupo
md5
22b1eaa45b25b5b5f02b04c9a1935872
sha1
26bb105601dcff24c07d00086469aa6959a9785f
sha256
e72ad3513b69dfbc9293fbb3c84d8972c62e34ed3c4d08f9b3851d934d5e0020
sha512
227551a84d963da3b52efe3eabf454da26139bd6705e21f10ca0d54e2473e5441035e1dfb0e1638c9feebf97f15bc1c457d5e14b62957c2087ab2d1d5cd54cef
ripemd-160
edc3c202f663bc1480f21ddbd511d9a5bf58e32b
Diameter
163748856
Circumference
514432203.04333
Area
2.1059421184476E+16
Volume
2.2989707513201E+24
Surface area
8.4237684737905E+16
Circumference
514432203.04333
Perimeter
327497712
Area
6703421960327184
Diagonal
115787926.48914
Surface area
40220531761963104
Volume
5.4883883864443E+23
Space diagonal
141810669.13664
Perimeter
245623284
Area
2.9026668549649E+15
Altitude
70905334.56832
Surface area
2.9026668549649E+15
Volume
6.4681277430671E+22
Height
38595975.49638