Base | Representation |
---|---|
bin | 1111101000011… |
… | …10011010011000 |
3 | 100010202010221220 |
4 | 13310032122120 |
5 | 232032143112 |
6 | 21002332040 |
7 | 3151411134 |
oct | 764163230 |
9 | 303663856 |
10 | 131131032 |
11 | 6802475a |
12 | 37aba020 |
13 | 21223536 |
14 | 135b63c4 |
15 | b7a398c |
hex | 7d0e698 |
131131032 has 16 divisors (see below), whose sum is σ = 327827640. Its totient is φ = 43710336.
The previous prime is 131131031. The next prime is 131131043. The reversal of 131131032 is 230131131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131131031) 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, 2731873 + ... + 2731920.
Almost surely, 2131131032 is an apocalyptic number.
131131032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131131032 is an abundant number, since it is smaller than the sum of its proper divisors (196696608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131131032 is a wasteful number, since it uses less digits than its factorization.
131131032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5463802 (or 5463798 counting only the distinct ones).
The product of its (nonzero) digits is 54, while the sum is 15.
The square root of 131131032 is about 11451.2458710832. The cubic root of 131131032 is about 508.0445845094.
Adding to 131131032 its reverse (230131131), we get a palindrome (361262163).
Subtracting 131131032 from its reverse (230131131), we obtain a palindrome (99000099).
The spelling of 131131032 in words is "one hundred thirty-one million, one hundred thirty-one thousand, thirty-two".
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