81790744 is an even 8-digits composite number following 81790743
and preceding 81790745 . In scientific notation, it is written as 8.1790744 × 10^7.
The sum of its digits is 40. It has a total of 6 prime factors and 32 positive divisors.
There are 33207840 positive integers (up to 81790744) that are relatively prime to 81790744.
81790744 has 32 divisors, whose sum is 184492800
The reverse of 81790744 is 44709718
Previous prime number is 19
Is Prime? no Number parity even Number length 8 Sum of Digits 40 Digital Root 4
Name
eighty-one million seven hundred ninety thousand seven hundred forty-four
Scientific notation
8.1790744 × 10^7
Engineering notation
8.1790744 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 19 × 76871
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
20447686 Product of the distinct prime numbers
The prime factorization of 81790744 is 2 × 2 × 2 × 7 × 19 × 76871.
Since it has a total of 6 prime factors.
6 , 8 , 67 , 40 , 870 , 302 , 9666 , 4437 , 82348 , 57578 , 538516 , 411262 , 5820718 , 9503103 , 84133213 , 14854751 , 99917869 , 878955058 , 6901381994 , 8900758732
n×2
163581488
n×3
245372232
n×4
327162976
n×5
408953720
n÷2
40895372
n÷3
27263581.333333
n÷3
20447686
n÷5
16358148.8
n2
6689725804073536
n3
5.4715765067117E+23
n4
4.4752431333687E+31
n5
3.6603346545912E+39
2 √n9043.82352769
3 √n434.07827734312
4 √n95.099019593737
5 √n38.242020656671
1 , 2 , 4 , 7 , 8 , 14 , 19 , 28 , 38 , 56 , 76 , 133 , 152 , 266 , 532 , 1064 , 76871 , 153742 , 307484 , 538097 , 614968 , 1076194 , 1460549 , 2152388 , 2921098 , 4304776 , 5842196 , 10223843 , 11684392 , 20447686 , 40895372 , 81790744
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81790743 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81790744 can be divided by 32 positive divisors.
The sum of these divisors (counting 81790744) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100111000000000011100011000
3
Ternary
12200220101210211
4
Quaternary
10320000130120
5
Quinary
131414300434
6
Senary
12041020504
8
Octal
470003430
10
Decimal
81790744
12
Duodecimal
23484734
16
Hexadecimal
4e00718
20
Vigesimal
15b3gh4
36
Base36
1cp254
md5
1c14036072a1b958bbbdd6169e049bae
sha1
8edbd6cbd3c83a58dc4b97d630a5b33b3741a635
sha256
2bc0920242335568a0a68a4592dc3ec339978da3db78dee80bb1dcdd0de4c2b9
sha512
930c1716aef5133d86ee66ad20b49881458fcfe98c90bf1b122f01d580390ed3fdbb1d5b7c8b4b4f2d63ef618523083796fa987489cf892ca3a06d1103717655
ripemd-160
17d73f0166084c9f838e3574206f61aaab2a0e01
Diameter
163581488
Circumference
513906400.96409
Area
2.1016393440607E+16
Volume
2.2919286076053E+24
Surface area
8.406557376243E+16
Circumference
513906400.96409
Perimeter
327162976
Area
6689725804073536
Diagonal
115669579.44139
Surface area
40138354824441216
Volume
5.4715765067117E+23
Space diagonal
141665724.19686
Perimeter
245372232
Area
2.89673624534E+15
Altitude
70832862.09843
Surface area
2.89673624534E+15
Volume
6.4483147527948E+22
Height
38556526.480462