81103430 is an even 8-digits composite number following 81103429
and preceding 81103431 . In scientific notation, it is written as 8.1103430 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 32 positive divisors.
There are 29478400 positive integers (up to 81103430) that are relatively prime to 81103430.
81103430 has 32 divisors, whose sum is 159913440
The reverse of 81103430 is 03430118
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million one hundred three thousand four hundred thirty
Scientific notation
8.1103430 × 10^7
Engineering notation
8.1103430 × 10^6
Prime Factorization
2 × 5 × 17 × 29 × 16451
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81103430
Product of the distinct prime numbers
The prime factorization of 81103430 is 2 × 5 × 17 × 29 × 16451.
Since it has a total of 5 prime factors.
1 , 1 , 65 , 16 , 422 , 83 , 5506 , 7647 , 32 , 7137 , 86797 , 937922 , 5449856 , 8016200 , 81872458 , 88391134 , 369955310 , 306782899 , 976211198 , 5041868225
n×2
162206860
n×3
243310290
n×4
324413720
n×5
405517150
n÷2
40551715
n÷3
27034476.666667
n÷3
20275857.5
n÷5
16220686
n2
6577766357764900
n3
5.3347941335334E+23
n4
4.3267010257344E+31
n5
3.5091029377158E+39
2 √n
9005.7442779595
3 √n
432.85895556736
4 √n
94.898599978922
5 √n
38.177531515006
1 , 2 , 5 , 10 , 17 , 29 , 34 , 58 , 85 , 145 , 170 , 290 , 493 , 986 , 2465 , 4930 , 16451 , 32902 , 82255 , 164510 , 279667 , 477079 , 559334 , 954158 , 1398335 , 2385395 , 2796670 , 4770790 , 8110343 , 16220686 , 40551715 , 81103430
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
-81103429
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 81103430 can be divided by 32 positive divisors.
The sum of these divisors (counting 81103430) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101011000101001000110
3
Ternary
12122121110222202
4
Quaternary
10311120221012
5
Quinary
131230302210
6
Senary
12014154502
8
Octal
465305106
10
Decimal
81103430
12
Duodecimal
231b2a32
16
Hexadecimal
4d58a46
20
Vigesimal
156hiba
36
Base36
1cabt2
md5
a12a75ef76c36fdc18d348f8930a8791
sha1
d07cec79cc7367d7c53b15d0966198eb9d55a0bc
sha256
a7013b40bb393f15c766c02b94b371db8fb913aa9527b25143097b86cae15e77
sha512
4c8a0470c5c3b660cf31888c83c1e00aa19646cf9dc46ad2eaddafbf07726693b6071d854d39be27035daebbff2b5c70a9b29ec403dc6fa12723457956ed56d5
ripemd-160
5cfa944cb7f3af15c3fe58b84d67d983d6191363
Diameter
162206860
Circumference
509587879.73787
Area
2.0664662466584E+16
Volume
2.2346333411097E+24
Surface area
8.2658649866337E+16
Circumference
509587879.73787
Perimeter
324413720
Area
6577766357764900
Diagonal
114697570.66098
Surface area
39466598146589400
Volume
5.3347941335334E+23
Space diagonal
140475261.42811
Perimeter
243310290
Area
2.8482563829915E+15
Altitude
70237630.714053
Surface area
2.8482563829915E+15
Volume
6.2871151800928E+22
Height
38232523.553659