81742023 is an odd 8-digits composite number following 81742022
and preceding 81742024 . In scientific notation, it is written as 8.1742023 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 47385360 positive integers (up to 81742023) that are relatively prime to 81742023.
81742023 has 16 divisors, whose sum is 103392000
The reverse of 81742023 is 32024718
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million seven hundred forty-two thousand twenty-three
Scientific notation
8.1742023 × 10^7
Engineering notation
8.1742023 × 10^6
Prime Factorization
11 × 9 × 23 × 35899
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81742023
Product of the distinct prime numbers
The prime factorization of 81742023 is 11 × 9 × 23 × 35899.
Since it has a total of 4 prime factors.
1 , 8 , 4 , 69 , 401 , 693 , 1668 , 9836 , 55951 , 90505 , 926599 , 915428 , 9060193 , 6472061 , 98064744 , 86770311 , 183445096 , 662078034 , 6108102737 , 2575369453
n×2
163484046
n×3
245226069
n×4
326968092
n×5
408710115
n÷2
40871011.5
n÷3
27247341
n÷3
20435505.75
n÷5
16348404.6
n2
6681758324132529
n3
5.4618044261168E+23
n4
4.4645894302114E+31
n5
3.649445718899E+39
2 √n
9041.1295201429
3 √n
433.99206983606
4 √n
95.084854315201
5 √n
38.237463579669
1 , 9 , 11 , 23 , 99 , 207 , 253 , 2277 , 35899 , 323091 , 394889 , 825677 , 3554001 , 7431093 , 9082447 , 81742023
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81742022
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81742023 can be divided by 16 positive divisors.
The sum of these divisors (counting 81742023) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111110100100011000111
3
Ternary
12200210220222100
4
Quaternary
10313310203013
5
Quinary
131411221043
6
Senary
12040003143
8
Octal
467644307
10
Decimal
81742023
12
Duodecimal
234604b3
16
Hexadecimal
4df48c7
20
Vigesimal
15ahf13
36
Base36
1co0jr
md5
1fd9780c0cc10e3cddca48ce7725bc6d
sha1
e277e9e25174d1747463a47df005a90e6a41e1b7
sha256
b740f5570fd6972fd3b687c548626c98a4bdcc944dda629b5b85e903ebeedc62
sha512
1af7c474944c8b3eddab7e757824a4606286d141ee3e13fe4af2e926bae2768d6552a4d6c11af65d2a5132ef71817053b05124107a8ae66f0801c3d1e075ea5a
ripemd-160
880638394d7713c04a5f131f8d1c7208d626f59e
Diameter
163484046
Circumference
513600277.89274
Area
2.0991362864157E+16
Volume
2.2878352880577E+24
Surface area
8.3965451456629E+16
Circumference
513600277.89274
Perimeter
326968092
Area
6681758324132529
Diagonal
115600677.54241
Surface area
40090549944795174
Volume
5.4618044261168E+23
Space diagonal
141581336.94946
Perimeter
245226069
Area
2.8932862253235E+15
Altitude
70790668.474732
Surface area
2.8932862253235E+15
Volume
6.4367982453698E+22
Height
38533559.180804