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31012163324 = 22479233791
BaseRepresentation
bin11100111000011110…
…000000111011111100
32222001021212010102122
4130320132000323330
51002003103211244
622125150142112
72145340016222
oct347036007374
988037763378
1031012163324
111217461534a
126015ab1938
132c02ca06cc
141702a40b12
15c1790e1ee
hex738780efc

31012163324 has 18 divisors (see below), whose sum is σ = 54386433024. Its totient is φ = 15473251960.

The previous prime is 31012163309. The next prime is 31012163341. The reversal of 31012163324 is 42336121013.

It is a junction number, because it is equal to n+sod(n) for n = 31012163293 and 31012163302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 900869 + ... + 934659.

Almost surely, 231012163324 is an apocalyptic number.

It is an amenable number.

31012163324 is a deficient number, since it is larger than the sum of its proper divisors (23374269700).

31012163324 is an equidigital number, since it uses as much as digits as its factorization.

31012163324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34753 (or 34272 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31012163324 its reverse (42336121013), we get a palindrome (73348284337).

The spelling of 31012163324 in words is "thirty-one billion, twelve million, one hundred sixty-three thousand, three hundred twenty-four".

Divisors: 1 2 4 479 958 1916 33791 67582 135164 229441 458882 917764 16185889 32371778 64743556 7753040831 15506081662 31012163324