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31110290038 = 2232291975147
BaseRepresentation
bin11100111110010100…
…010101101001110110
32222022010111110222101
4130332110111221312
51002203213240123
622143013252314
72150641050022
oct347624255166
988263443871
1031110290038
1112214a47403
12604293409a
132c1a409659
141711aa5382
15c21343aad
hex73e515a76

31110290038 has 48 divisors (see below), whose sum is σ = 50730760080. Its totient is φ = 14290071488.

The previous prime is 31110290023. The next prime is 31110290041. The reversal of 31110290038 is 83009201113.

It is a junction number, because it is equal to n+sod(n) for n = 31110289988 and 31110290015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6041781 + ... + 6046927.

It is an arithmetic number, because the mean of its divisors is an integer number (1056890835).

Almost surely, 231110290038 is an apocalyptic number.

31110290038 is a deficient number, since it is larger than the sum of its proper divisors (19620470042).

31110290038 is a wasteful number, since it uses less digits than its factorization.

31110290038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421 (or 5398 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 31110290038 in words is "thirty-one billion, one hundred ten million, two hundred ninety thousand, thirty-eight".

Divisors: 1 2 23 29 46 58 197 394 529 667 1058 1334 4531 5147 5713 9062 10294 11426 15341 30682 104213 118381 131399 149263 208426 236762 262798 298526 1013959 2027918 2722763 3022177 3433049 5445526 6044354 6866098 23321057 29404811 46642114 58809622 78960127 157920254 536384311 676310653 1072768622 1352621306 15555145019 31110290038