81874442 is an even 8-digits composite number following 81874441
and preceding 81874443 . In scientific notation, it is written as 8.1874442 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 37588080 positive integers (up to 81874442) that are relatively prime to 81874442.
81874442 has 8 divisors, whose sum is 122868576
The reverse of 81874442 is 24447818
Previous prime number is 2483
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million eight hundred seventy-four thousand four hundred forty-two
Scientific notation
8.1874442 × 10^7
Engineering notation
8.1874442 × 10^6
Prime Factorization
2 × 2483 × 16487
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81874442
Product of the distinct prime numbers
The prime factorization of 81874442 is 2 × 2483 × 16487.
Since it has a total of 3 prime factors.
8 , 1 , 83 , 21 , 331 , 216 , 1478 , 2018 , 10260 , 92369 , 343961 , 818632 , 1529470 , 7541641 , 27841715 , 82494836 , 338654529 , 826367350 , 4709230926 , 6531600179
n×2
163748884
n×3
245623326
n×4
327497768
n×5
409372210
n÷2
40937221
n÷3
27291480.666667
n÷3
20468610.5
n÷5
16374888.4
n2
6703424252811364
n3
5.488391201882E+23
n4
4.493589671318E+31
n5
3.6791014691612E+39
2 √n
9048.4497014682
3 √n
434.22629367531
4 √n
95.123339415036
5 √n
38.249844210107
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
-81874441
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 81874442 can be divided by 8 positive divisors.
The sum of these divisors (counting 81874442) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000010100111000001010
3
Ternary
12201001122121202
4
Quaternary
10320110320022
5
Quinary
131424440232
6
Senary
12042504202
8
Octal
470247012
10
Decimal
81874442
12
Duodecimal
23505062
16
Hexadecimal
4e14e0a
20
Vigesimal
15be622
36
Base36
1cquq2
md5
fdbe0812e8effae58661566749c395f7
sha1
27f0551f54a4f92738f3d37cecfedc1dda0ee3e7
sha256
177b9acd450c134553fd01716dbc4a46ac4a562fc6f7770e147d325c86ec940a
sha512
8669f2e47073c112edc8258a16855c65b6c97c6139e096e293c077860f00d2a1db8f1aae4720f057fd05f7f03c8acad98c2fb2431faa7a02fea330cc7b49fce4
ripemd-160
6f7f03a2d1f921b5397d0bc622d72bb3dcdc8435
Diameter
163748884
Circumference
514432291.00793
Area
2.1059428386528E+16
Volume
2.2989719306479E+24
Surface area
8.4237713546111E+16
Circumference
514432291.00793
Perimeter
327497768
Area
6703424252811364
Diagonal
115787946.28813
Surface area
40220545516868184
Volume
5.488391201882E+23
Space diagonal
141810693.38535
Perimeter
245623326
Area
2.9026678476397E+15
Altitude
70905346.692676
Surface area
2.9026678476397E+15
Volume
6.4681310610922E+22
Height
38595982.096043