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288485042688864 = 253271045713684397
BaseRepresentation
bin100000110011000000010100…
…0011111100001001101100000
31101211102220022122021001201200
41001212000220133201031200
5300303014331412020424
62501320110554201200
7114523233201332010
oct10146005037411540
91354386278231650
10288485042688864
1183a1390189895a
1228432401123200
13c4c803b112648
145134a717a9c40
1523542583908c9
hex10660287e1360

288485042688864 has 144 divisors (see below), whose sum is σ = 937666117428768. Its totient is φ = 82416409675776.

The previous prime is 288485042688863. The next prime is 288485042688889. The reversal of 288485042688864 is 468886240584882.

288485042688864 is a `hidden beast` number, since 2 + 8 + 8 + 4 + 8 + 50 + 426 + 8 + 88 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×2884850426888642 (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288485042688863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14239114 + ... + 27923510.

It is an arithmetic number, because the mean of its divisors is an integer number (6511570259922).

Almost surely, 2288485042688864 is an apocalyptic number.

288485042688864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

288485042688864 is an abundant number, since it is smaller than the sum of its proper divisors (649181074739904).

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

288485042688864 is a wasteful number, since it uses less digits than its factorization.

288485042688864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694877 (or 13694866 counting only the distinct ones).

The product of its (nonzero) digits is 12079595520, while the sum is 81.

The spelling of 288485042688864 in words is "two hundred eighty-eight trillion, four hundred eighty-five billion, forty-two million, six hundred eighty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 10457 20914 31371 41828 62742 73199 83656 94113 125484 146398 167312 188226 219597 250968 292796 334624 376452 439194 501936 585592 658791 752904 878388 1003872 1171184 1317582 1505808 1756776 2342368 2635164 3011616 3513552 5270328 7027104 10540656 13684397 21081312 27368794 41053191 54737588 82106382 95790779 109475176 123159573 164212764 191581558 218950352 246319146 287372337 328425528 383163116 437900704 492638292 574744674 656851056 766326232 862117011 985276584 1149489348 1313702112 1532652464 1724234022 1970553168 2298978696 3065304928 3448468044 3941106336 4597957392 6896936088 9195914784 13793872176 27587744352 143097739429 286195478858 429293218287 572390957716 858586436574 1001684176003 1144781915432 1287879654861 1717172873148 2003368352006 2289563830864 2575759309722 3005052528009 3434345746296 4006736704012 4579127661728 5151518619444 6010105056018 6868691492592 8013473408024 9015157584027 10303037238888 12020210112036 13737382985184 16026946816048 18030315168054 20606074477776 24040420224072 32053893632096 36060630336108 41212148955552 48080840448144 72121260672216 96161680896288 144242521344432 288485042688864