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18675242234 = 2111959974587
BaseRepresentation
bin10001011001001000…
…011001010011111010
31210012111202121020022
4101121020121103322
5301221330222414
612325043130442
71230534640235
oct213110312372
953174677208
1018675242234
117a137619a0
123752373a22
1319b80b1abc
14c9239c41c
157447da18e
hex4592194fa

18675242234 has 32 divisors (see below), whose sum is σ = 32222016000. Its totient is φ = 8028437040.

The previous prime is 18675242207. The next prime is 18675242309. The reversal of 18675242234 is 43224257681.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213089 + ... + 287675.

It is an arithmetic number, because the mean of its divisors is an integer number (1006938000).

Almost surely, 218675242234 is an apocalyptic number.

18675242234 is a deficient number, since it is larger than the sum of its proper divisors (13546773766).

18675242234 is a wasteful number, since it uses less digits than its factorization.

18675242234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75218.

The product of its digits is 645120, while the sum is 44.

The spelling of 18675242234 in words is "eighteen billion, six hundred seventy-five million, two hundred forty-two thousand, two hundred thirty-four".

Divisors: 1 2 11 19 22 38 209 418 599 1198 6589 11381 13178 22762 74587 125191 149174 250382 820457 1417153 1640914 2834306 15588683 31177366 44677613 89355226 491453743 848874647 982907486 1697749294 9337621117 18675242234