Base | Representation |
---|---|
bin | 11101001010010110… |
… | …001110001000101100 |
3 | 2222211012021000002101 |
4 | 131022112032020230 |
5 | 1003111400010444 |
6 | 22215023104444 |
7 | 2155641354541 |
oct | 351226161054 |
9 | 88735230071 |
10 | 31312110124 |
11 | 12308962869 |
12 | 609a442124 |
13 | 2c50180219 |
14 | 17307dcbc8 |
15 | c33e0c3d4 |
hex | 74a58e22c |
31312110124 has 12 divisors (see below), whose sum is σ = 57680203000. Its totient is φ = 14832052128.
The previous prime is 31312110121. The next prime is 31312110131. The reversal of 31312110124 is 42101121313.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is not an unprimeable number, because it can be changed into a prime (31312110121) 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, 206000649 + ... + 206000800.
Almost surely, 231312110124 is an apocalyptic number.
It is an amenable number.
31312110124 is a deficient number, since it is larger than the sum of its proper divisors (26368092876).
31312110124 is a wasteful number, since it uses less digits than its factorization.
31312110124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 412001472 (or 412001470 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 31312110124 its reverse (42101121313), we get a palindrome (73413231437).
The spelling of 31312110124 in words is "thirty-one billion, three hundred twelve million, one hundred ten thousand, one hundred twenty-four".
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