Base | Representation |
---|---|
bin | 1111101001000… |
… | …10110010110000 |
3 | 100010220101110202 |
4 | 13310202302300 |
5 | 232042331022 |
6 | 21004214332 |
7 | 3152206412 |
oct | 764426260 |
9 | 303811422 |
10 | 131214512 |
11 | 68081450 |
12 | 37b3a3a8 |
13 | 21252530 |
14 | 135d89b2 |
15 | b7bd592 |
hex | 7d22cb0 |
131214512 has 40 divisors (see below), whose sum is σ = 298678800. Its totient is φ = 55054080.
The previous prime is 131214509. The next prime is 131214533. The reversal of 131214512 is 215412131.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26387 + ... + 30962.
It is an arithmetic number, because the mean of its divisors is an integer number (7466970).
Almost surely, 2131214512 is an apocalyptic number.
It is an amenable number.
131214512 is an abundant number, since it is smaller than the sum of its proper divisors (167464288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131214512 is a wasteful number, since it uses less digits than its factorization.
131214512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57381 (or 57375 counting only the distinct ones).
The product of its digits is 240, while the sum is 20.
The square root of 131214512 is about 11454.8903093832. The cubic root of 131214512 is about 508.1523712642.
Adding to 131214512 its reverse (215412131), we get a palindrome (346626643).
The spelling of 131214512 in words is "one hundred thirty-one million, two hundred fourteen thousand, five hundred twelve".
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