Base | Representation |
---|---|
bin | 1111101001110… |
… | …10010110111000 |
3 | 100011002021212120 |
4 | 13310322112320 |
5 | 232103423112 |
6 | 21010241240 |
7 | 3153060666 |
oct | 764722670 |
9 | 304067776 |
10 | 131311032 |
11 | 68137a16 |
12 | 37b86220 |
13 | 21287448 |
14 | 13621c36 |
15 | b7dbe8c |
hex | 7d3a5b8 |
131311032 has 32 divisors (see below), whose sum is σ = 330378000. Its totient is φ = 43490304.
The previous prime is 131311031. The next prime is 131311057. The reversal of 131311032 is 230113131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131311031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13657 + ... + 21192.
Almost surely, 2131311032 is an apocalyptic number.
131311032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131311032 is an abundant number, since it is smaller than the sum of its proper divisors (199066968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131311032 is a wasteful number, since it uses less digits than its factorization.
131311032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35015 (or 35011 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 131311032 is about 11459.1025826633. The cubic root of 131311032 is about 508.2769378865.
Adding to 131311032 its reverse (230113131), we get a palindrome (361424163).
The spelling of 131311032 in words is "one hundred thirty-one million, three hundred eleven thousand, thirty-two".
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