Base | Representation |
---|---|
bin | 1111101010110… |
… | …10010111001100 |
3 | 100011022221200211 |
4 | 13311122113030 |
5 | 232122121444 |
6 | 21013132204 |
7 | 3154145122 |
oct | 765322714 |
9 | 304287624 |
10 | 131442124 |
11 | 68217460 |
12 | 3802a064 |
13 | 21302008 |
14 | 13657912 |
15 | b815c34 |
hex | 7d5a5cc |
131442124 has 24 divisors (see below), whose sum is σ = 251470800. Its totient is φ = 59618880.
The previous prime is 131442109. The next prime is 131442131. The reversal of 131442124 is 421244131.
It is a happy number.
131442124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a junction number, because it is equal to n+sod(n) for n = 131442095 and 131442104.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19462 + ... + 25330.
It is an arithmetic number, because the mean of its divisors is an integer number (10477950).
Almost surely, 2131442124 is an apocalyptic number.
It is an amenable number.
131442124 is a deficient number, since it is larger than the sum of its proper divisors (120028676).
131442124 is a wasteful number, since it uses less digits than its factorization.
131442124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6393 (or 6391 counting only the distinct ones).
The product of its digits is 768, while the sum is 22.
The square root of 131442124 is about 11464.8211499351. The cubic root of 131442124 is about 508.4460246680.
Adding to 131442124 its reverse (421244131), we get a palindrome (552686255).
The spelling of 131442124 in words is "one hundred thirty-one million, four hundred forty-two thousand, one hundred twenty-four".
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