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18788116564014 = 23722325889107323
BaseRepresentation
bin1000100010110011100110…
…00000111000100000101110
32110112010102010222022002120
410101121303000320200232
54430311030320022024
6103543050330133410
73646253020542600
oct421316300704056
973463363868076
1018788116564014
115a93aa4aa4676
12213531a281266
13a63933a57505
1448d4c77b9170
15228ac6ca2479
hex11167303882e

18788116564014 has 96 divisors (see below), whose sum is σ = 45613798997760. Its totient is φ = 5134394377728.

The previous prime is 18788116563961. The next prime is 18788116564033. The reversal of 18788116564014 is 41046561188781.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175007757 + ... + 175115079.

It is an arithmetic number, because the mean of its divisors is an integer number (475143739560).

Almost surely, 218788116564014 is an apocalyptic number.

18788116564014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18788116564014 is an abundant number, since it is smaller than the sum of its proper divisors (26825682433746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18788116564014 is a wasteful number, since it uses less digits than its factorization.

18788116564014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133254 (or 133247 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 18788116564014 in words is "eighteen trillion, seven hundred eighty-eight billion, one hundred sixteen million, five hundred sixty-four thousand, fourteen".

Divisors: 1 2 3 6 7 14 21 23 42 46 49 69 98 138 147 161 294 322 483 966 1127 2254 3381 6762 25889 51778 77667 107323 155334 181223 214646 321969 362446 543669 595447 643938 751261 1087338 1190894 1268561 1502522 1786341 2253783 2468429 2537122 3572682 3805683 4168129 4507566 4936858 5258827 7405287 7611366 8336258 10517654 12504387 14810574 15776481 17279003 25008774 29176903 31552962 34558006 51837009 58353806 87530709 103674018 120953021 175061418 241906042 362859063 725718126 2778485147 5556970294 8335455441 16670910882 19449396029 38898792058 58348188087 63905158381 116696376174 127810316762 136145772203 191715475143 272291544406 383430950286 408437316609 447336108667 816874633218 894672217334 1342008326001 2684016652002 3131352760669 6262705521338 9394058282007 18788116564014