Base | Representation |
---|---|
bin | 1111101010101… |
… | …01111100100000 |
3 | 100011022000212202 |
4 | 13311111330200 |
5 | 232121032112 |
6 | 21012512332 |
7 | 3154041305 |
oct | 765257440 |
9 | 304260782 |
10 | 131424032 |
11 | 68204903 |
12 | 3801b6a8 |
13 | 212c69cc |
14 | 136510ac |
15 | b8106c2 |
hex | 7d55f20 |
131424032 has 24 divisors (see below), whose sum is σ = 264249216. Its totient is φ = 64313152.
The previous prime is 131424031. The next prime is 131424043. The reversal of 131424032 is 230424131.
It is a junction number, because it is equal to n+sod(n) for n = 131423995 and 131424013.
It is not an unprimeable number, because it can be changed into a prime (131424031) 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, 42188 + ... + 45195.
It is an arithmetic number, because the mean of its divisors is an integer number (11010384).
Almost surely, 2131424032 is an apocalyptic number.
It is an amenable number.
131424032 is an abundant number, since it is smaller than the sum of its proper divisors (132825184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131424032 is an equidigital number, since it uses as much as digits as its factorization.
131424032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87440 (or 87432 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 131424032 is about 11464.0321004435. The cubic root of 131424032 is about 508.4226956994.
Adding to 131424032 its reverse (230424131), we get a palindrome (361848163).
Subtracting 131424032 from its reverse (230424131), we obtain a palindrome (99000099).
The spelling of 131424032 in words is "one hundred thirty-one million, four hundred twenty-four thousand, thirty-two".
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