81331103 is an odd 8-digits composite number following 81331102
and preceding 81331104 . In scientific notation, it is written as 8.1331103 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 66630816 positive integers (up to 81331103) that are relatively prime to 81331103.
81331103 has 16 divisors, whose sum is 97152000
The reverse of 81331103 is 30113318
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million three hundred thirty-one thousand one hundred three
Scientific notation
8.1331103 × 10^7
Engineering notation
8.1331103 × 10^6
Prime Factorization
7 × 47 × 43 × 5749
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81331103
Product of the distinct prime numbers
The prime factorization of 81331103 is 7 × 47 × 43 × 5749.
Since it has a total of 4 prime factors.
6 , 8 , 44 , 75 , 29 , 603 , 6745 , 4683 , 52326 , 36166 , 540411 , 719233 , 6361253 , 8130015 , 86510114 , 46200634 , 278475651 , 553086754 , 8988809296 , 6395556605
n×2
162662206
n×3
243993309
n×4
325324412
n×5
406655515
n÷2
40665551.5
n÷3
27110367.666667
n÷3
20332775.75
n÷5
16266220.6
n2
6614748315196609
n3
5.3798477654233E+23
n4
4.3754895273396E+31
n5
3.5586338942348E+39
2 √n
9018.37585156
3 √n
433.26361672642
4 √n
94.965129661155
5 √n
38.198941828966
1 , 7 , 43 , 47 , 301 , 329 , 2021 , 5749 , 14147 , 40243 , 247207 , 270203 , 1730449 , 1891421 , 11618729 , 81331103
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
-81331102
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 81331103 can be divided by 16 positive divisors.
The sum of these divisors (counting 81331103) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010000001110011111
3
Ternary
12200001001022002
4
Quaternary
10312100032133
5
Quinary
131310043403
6
Senary
12023112515
8
Octal
466201637
10
Decimal
81331103
12
Duodecimal
232a273b
16
Hexadecimal
4d9039f
20
Vigesimal
15867f3
36
Base36
1cf7hb
md5
7c5574c8e376d52096fb61e018f137f2
sha1
19318568fe985b6a06388b597aea543ab3db8cca
sha256
9bddae243e1cb78ccd985bc04a8e7d52e054a37657ed4f4df658c91c56f6d7ae
sha512
ea1a7b68ade34da519af1bc6804e19b2b319ce30a1d4a0131ece037167e95c405e7f292074b3c46a54c6255a9f163bfe8444d7d543457cff0d920bdb3aba3014
ripemd-160
0b356bb176ed8a0ecc7e26d1d0b0de8ea6320efc
Diameter
162662206
Circumference
511018391.38631
Area
2.0780844712367E+16
Volume
2.2535053623047E+24
Surface area
8.3123378849469E+16
Circumference
511018391.38631
Perimeter
325324412
Area
6614748315196609
Diagonal
115019548.90536
Surface area
39688489891179654
Volume
5.3798477654233E+23
Space diagonal
140869602.63162
Perimeter
243993309
Area
2.8642700403003E+15
Altitude
70434801.315809
Surface area
2.8642700403003E+15
Volume
6.3402113944702E+22
Height
38339849.635121