81742057 is an odd 8-digits composite number following 81742056
and preceding 81742058 . In scientific notation, it is written as 8.1742057 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 81450880 positive integers (up to 81742057) that are relatively prime to 81742057.
81742057 has 4 divisors, whose sum is 82033236
The reverse of 81742057 is 75024718
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million seven hundred forty-two thousand fifty-seven
Scientific notation
8.1742057 × 10^7
Engineering notation
8.1742057 × 10^6
Prime Factorization
281 × 290897
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81742057
Product of the distinct prime numbers
The prime factorization of 81742057 is 281 × 290897.
Since it has a total of 2 prime factors.
1 , 4 , 57 , 83 , 406 , 445 , 6789 , 6736 , 14483 , 98521 , 884875 , 978652 , 8597825 , 2562522 , 5284632 , 44705997 , 362398371 , 61546399 , 3036323635 , 692589607
n×2
163484114
n×3
245226171
n×4
326968228
n×5
408710285
n÷2
40871028.5
n÷3
27247352.333333
n÷3
20435514.25
n÷5
16348411.4
n2
6681763882591249
n3
5.4618112415132E+23
n4
4.4645968582701E+31
n5
3.6494533087073E+39
2 √n
9041.1314004388
3 √n
433.992130008
4 √n
95.084864202663
5 √n
38.237466760588
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
-81742056
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 81742057 can be divided by 4 positive divisors.
The sum of these divisors (counting 81742057) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110100100011101001
3
Ternary
12200210221000121
4
Quaternary
10313310203221
5
Quinary
131411221212
6
Senary
12040003241
8
Octal
467644351
10
Decimal
81742057
12
Duodecimal
23460521
16
Hexadecimal
4df48e9
20
Vigesimal
15ahf2h
36
Base36
1co0kp
md5
b1adaf970be4c1a2ba3ccc216d720856
sha1
525e5b80bdd47bd453ae379ebf5664cf9c9b455e
sha256
38ada675c16a357e04ca405b90a9e3da7a74efa46e4de18f3b0bc6df20939e5a
sha512
62fc78baed0f019c54f3e91e751c5ac0f574e8a6bfdcf4a027a62b4485c3ed7c3af75ddbb48202e02b7def80607d2d75d0f9f98ed3a93f902fe1ec78c9ecfa0c
ripemd-160
6cf730e426fd28cfb334112d01355900b56bfff6
Diameter
163484114
Circumference
513600491.52104
Area
2.099138032657E+16
Volume
2.2878381428842E+24
Surface area
8.3965521306281E+16
Circumference
513600491.52104
Perimeter
326968228
Area
6681763882591249
Diagonal
115600725.62567
Surface area
40090583295547494
Volume
5.4618112415132E+23
Space diagonal
141581395.83919
Perimeter
245226171
Area
2.8932886322067E+15
Altitude
70790697.919596
Surface area
2.8932886322067E+15
Volume
6.4368062773914E+22
Height
38533575.208558