Base | Representation |
---|---|
bin | 1111101001110… |
… | …10001000010111 |
3 | 100011002020121011 |
4 | 13310322020113 |
5 | 232103410403 |
6 | 21010233051 |
7 | 3153055201 |
oct | 764721027 |
9 | 304066534 |
10 | 131310103 |
11 | 68137251 |
12 | 37b85787 |
13 | 21286bb2 |
14 | 13621771 |
15 | b7dba6d |
hex | 7d3a217 |
131310103 has 4 divisors (see below), whose sum is σ = 132254920. Its totient is φ = 130365288.
The previous prime is 131310071. The next prime is 131310107. The reversal of 131310103 is 301013131.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131310103 - 25 = 131310071 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131310107) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472200 + ... + 472477.
It is an arithmetic number, because the mean of its divisors is an integer number (33063730).
Almost surely, 2131310103 is an apocalyptic number.
131310103 is a deficient number, since it is larger than the sum of its proper divisors (944817).
131310103 is an equidigital number, since it uses as much as digits as its factorization.
131310103 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 944816.
The product of its (nonzero) digits is 27, while the sum is 13.
The square root of 131310103 is about 11459.0620471311. The cubic root of 131310103 is about 508.2757392302.
Adding to 131310103 its reverse (301013131), we get a palindrome (432323234).
The spelling of 131310103 in words is "one hundred thirty-one million, three hundred ten thousand, one hundred three".
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