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18072761406084 = 223271153123014249
BaseRepresentation
bin1000001101111111001001…
…00001100001001010000100
32100222201221211001001120200
410012333210201201022010
54332101003404443314
6102234302330330500
73543466606201020
oct406774441411204
970881854031520
1018072761406084
115838684726610
12203a757289a30
13a1133c300708
14466a2503d380
152151a9b2d709
hex106fe4861284

18072761406084 has 144 divisors (see below), whose sum is σ = 58031234352000. Its totient is φ = 4605653445120.

The previous prime is 18072761406067. The next prime is 18072761406103. The reversal of 18072761406084 is 48060416727081.

18072761406084 is a `hidden beast` number, since 1 + 8 + 0 + 7 + 27 + 6 + 1 + 4 + 0 + 608 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18072761406084.

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, 61360209 + ... + 61654040.

It is an arithmetic number, because the mean of its divisors is an integer number (402994683000).

Almost surely, 218072761406084 is an apocalyptic number.

18072761406084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18072761406084 is an abundant number, since it is smaller than the sum of its proper divisors (39958472945916).

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

18072761406084 is a wasteful number, since it uses less digits than its factorization.

18072761406084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123014330 (or 123014325 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 18072761406084 in words is "eighteen trillion, seventy-two billion, seven hundred sixty-one million, four hundred six thousand, eighty-four".

Divisors: 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 53 63 66 77 84 99 106 126 132 154 159 198 212 231 252 308 318 371 396 462 477 583 636 693 742 924 954 1113 1166 1386 1484 1749 1908 2226 2332 2772 3339 3498 4081 4452 5247 6678 6996 8162 10494 12243 13356 16324 20988 24486 36729 48972 73458 146916 123014249 246028498 369042747 492056996 738085494 861099743 1107128241 1353156739 1476170988 1722199486 2214256482 2583299229 2706313478 3444398972 4059470217 4428512964 5166598458 5412626956 6519755197 7749897687 8118940434 9472097173 10333196916 12178410651 13039510394 15499795374 16237880868 18944194346 19559265591 24356821302 26079020788 28416291519 30999590748 37888388692 39118531182 45638286379 48713642604 56832583038 58677796773 71717307167 78237062364 85248874557 91276572758 113665166076 117355593546 136914859137 143434614334 170497749114 182553145516 215151921501 234711187092 273829718274 286869228668 340995498228 410744577411 430303843002 502021150169 547659436548 645455764503 821489154822 860607686004 1004042300338 1290911529006 1506063450507 1642978309644 2008084600676 2581823058012 3012126901014 4518190351521 6024253802028 9036380703042 18072761406084