81103312 is an even 8-digits composite number following 81103311
and preceding 81103313 . In scientific notation, it is written as 8.1103312 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 10 positive divisors.
There are 40551648 positive integers (up to 81103312) that are relatively prime to 81103312.
81103312 has 10 divisors, whose sum is 157137698
The reverse of 81103312 is 21330118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million one hundred three thousand three hundred twelve
Scientific notation
8.1103312 × 10^7
Engineering notation
8.1103312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5068957
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10137914
Product of the distinct prime numbers
The prime factorization of 81103312 is 2 × 2 × 2 × 2 × 5068957.
Since it has a total of 5 prime factors.
3 , 2 , 18 , 59 , 60 , 52 , 4473 , 9722 , 81363 , 44350 , 923373 , 402483 , 3388676 , 1632155 , 72057682 , 77132185 , 714488596 , 365697696 , 4114375216 , 3817240043
n×2
162206624
n×3
243309936
n×4
324413248
n×5
405516560
n÷2
40551656
n÷3
27034437.333333
n÷3
20275828
n÷5
16220662.4
n2
6577747217369344
n3
5.3347708482744E+23
n4
4.326675845561E+31
n5
3.509077410254E+39
2 √n
9005.737726583
3 √n
432.85874564044
4 √n
94.898565461144
5 √n
38.177520405855
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81103311
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81103312 can be divided by 10 positive divisors.
The sum of these divisors (counting 81103312) is 1, the average is 0.1.
Base
System
Value
2
Binary
100110101011000100111010000
3
Ternary
12122121110211101
4
Quaternary
10311120213100
5
Quinary
131230301222
6
Senary
12014154144
8
Octal
465304720
10
Decimal
81103312
12
Duodecimal
231b2954
16
Hexadecimal
4d589d0
20
Vigesimal
156hi5c
36
Base36
1cabps
md5
469f517ea1910ab58e452663b3695f75
sha1
9b15f1c3336fedc05fbc0fde76fa181b0e8cb7e7
sha256
1937b467254ced3cc077f8d0abbbb231893e9354ce5f1e5c790fab0c14863dab
sha512
1555b41f5dbafce5da84c1cd1ef5fdee7da759cfd19ca80ecce077988e0ceaac08686ad410f0d4bcaacaae517dd732175fd119ca80e2373c25ed8751a9519882
ripemd-160
f4482471827feb0c37558e86f0cd2b36244e261b
Diameter
162206624
Circumference
509587138.322
Area
2.0664602335258E+16
Volume
2.2346235874032E+24
Surface area
8.2658409341033E+16
Circumference
509587138.322
Perimeter
324413248
Area
6577747217369344
Diagonal
114697403.78378
Surface area
39466483304216064
Volume
5.3347708482744E+23
Space diagonal
140475057.04611
Perimeter
243309936
Area
2.8482480949571E+15
Altitude
70237528.523055
Surface area
2.8482480949571E+15
Volume
6.2870877381519E+22
Height
38232467.927926