Base | Representation |
---|---|
bin | 11101000110010100… |
… | …100010101101101100 |
3 | 2222122111011011110121 |
4 | 131012110202231230 |
5 | 1002442101430020 |
6 | 22204211214324 |
7 | 2154161250223 |
oct | 350624425554 |
9 | 88574134417 |
10 | 31244561260 |
11 | 12283816360 |
12 | 607b8a73a4 |
13 | 2c3c18c293 |
14 | 1725857cba |
15 | c2d017baa |
hex | 746522b6c |
31244561260 has 48 divisors (see below), whose sum is σ = 71594464032. Its totient is φ = 11359116800.
The previous prime is 31244561233. The next prime is 31244561261. The reversal of 31244561260 is 6216544213.
It is not an unprimeable number, because it can be changed into a prime (31244561261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170624 + ... + 1197016.
It is an arithmetic number, because the mean of its divisors is an integer number (1491551334).
Almost surely, 231244561260 is an apocalyptic number.
It is an amenable number.
31244561260 is an abundant number, since it is smaller than the sum of its proper divisors (40349902772).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31244561260 is a wasteful number, since it uses less digits than its factorization.
31244561260 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31794 (or 31792 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 34.
The spelling of 31244561260 in words is "thirty-one billion, two hundred forty-four million, five hundred sixty-one thousand, two hundred sixty".
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