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868894674144 = 253710177127051
BaseRepresentation
bin11001010010011100010…
…10001000110011100000
310002001202202121210211120
430221032022020303200
5103213444014033034
61503055324212240
7116530006604220
oct14511612106340
93061682553746
10868894674144
11305550434122
1212049309a080
1363c233ca153
14300aa254080
1517906868c49
hexca4e288ce0

868894674144 has 96 divisors (see below), whose sum is σ = 2606960676096. Its totient is φ = 248229273600.

The previous prime is 868894674133. The next prime is 868894674163. The reversal of 868894674144 is 441476498868.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent 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, 6775419 + ... + 6902469.

It is an arithmetic number, because the mean of its divisors is an integer number (27155840376).

Almost surely, 2868894674144 is an apocalyptic number.

868894674144 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

868894674144 is an abundant number, since it is smaller than the sum of its proper divisors (1738066001952).

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

868894674144 is a wasteful number, since it uses less digits than its factorization.

868894674144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137248 (or 137240 counting only the distinct ones).

The product of its digits is 297271296, while the sum is 69.

The spelling of 868894674144 in words is "eight hundred sixty-eight billion, eight hundred ninety-four million, six hundred seventy-four thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 10177 20354 30531 40708 61062 71239 81416 122124 127051 142478 162832 213717 244248 254102 284956 325664 381153 427434 488496 508204 569912 762306 854868 889357 976992 1016408 1139824 1524612 1709736 1778714 2032816 2279648 2668071 3049224 3419472 3557428 4065632 5336142 6098448 6838944 7114856 10672284 12196896 14229712 21344568 28459424 42689136 85378272 1292998027 2585996054 3878994081 5171992108 7757988162 9050986189 10343984216 15515976324 18101972378 20687968432 27152958567 31031952648 36203944756 41375936864 54305917134 62063905296 72407889512 108611834268 124127810592 144815779024 217223668536 289631558048 434447337072 868894674144