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20540364235112 = 23191133779316453
BaseRepresentation
bin1001010101110011011010…
…00111010010000101101000
32200201122021022002211001002
410222321231013102011220
510143013131221010422
6111404040231014132
74216664242155101
oct452715507220550
980648238084032
1020540364235112
1165aa135140827
122378a3a50a348
13b5cc42ab26a7
145102321833a8
1525947e44c692
hex12ae6d1d2168

20540364235112 has 64 divisors (see below), whose sum is σ = 40909907304000. Its totient is φ = 9640960809984.

The previous prime is 20540364234989. The next prime is 20540364235141. The reversal of 20540364235112 is 21153246304502.

It is a super-2 number, since 2×205403642351122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 64749878 + ... + 65066330.

It is an arithmetic number, because the mean of its divisors is an integer number (639217301625).

Almost surely, 220540364235112 is an apocalyptic number.

It is an amenable number.

20540364235112 is a deficient number, since it is larger than the sum of its proper divisors (20369543068888).

20540364235112 is a wasteful number, since it uses less digits than its factorization.

20540364235112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320370 (or 320366 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 20540364235112 in words is "twenty trillion, five hundred forty billion, three hundred sixty-four million, two hundred thirty-five thousand, one hundred twelve".

Divisors: 1 2 4 8 19 38 76 113 152 226 452 904 2147 3779 4294 7558 8588 15116 17176 30232 71801 143602 287204 316453 427027 574408 632906 854054 1265812 1708108 2531624 3416216 6012607 8113513 12025214 16227026 24050428 32454052 35759189 48100856 64908104 71518378 143036756 286073512 679424591 1195875887 1358849182 2391751774 2717698364 4783503548 5435396728 9567007096 22721641853 45443283706 90886567412 135133975231 181773134824 270267950462 540535900924 1081071801848 2567545529389 5135091058778 10270182117556 20540364235112