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54197977068 = 22341471113717
BaseRepresentation
bin110010011110011100…
…110111111111101100
312011220011001111120000
4302132130313333230
51341444140231233
640522002424300
73626035126644
oct623634677754
9164804044500
1054197977068
1120a92388394
12a606962090
1351596baa21
1428a209b524
1516231c4d13
hexc9e737fec

54197977068 has 60 divisors (see below), whose sum is σ = 141781782912. Its totient is φ = 18053552160.

The previous prime is 54197977051. The next prime is 54197977123. The reversal of 54197977068 is 86077979145.

54197977068 is a `hidden beast` number, since 5 + 419 + 7 + 97 + 70 + 68 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 54197976996 and 54197977014.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 419746 + ... + 533462.

Almost surely, 254197977068 is an apocalyptic number.

It is an amenable number.

54197977068 is an abundant number, since it is smaller than the sum of its proper divisors (87583805844).

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

54197977068 is a wasteful number, since it uses less digits than its factorization.

54197977068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115204 (or 115193 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

It can be divided in two parts, 5419797 and 7068, that added together give a triangular number (5426865 = T3294).

The spelling of 54197977068 in words is "fifty-four billion, one hundred ninety-seven million, nine hundred seventy-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 1471 2942 4413 5884 8826 13239 17652 26478 39717 52956 79434 113717 119151 158868 227434 238302 341151 454868 476604 682302 1023453 1364604 2046906 3070359 4093812 6140718 9211077 12281436 18422154 36844308 167277707 334555414 501833121 669110828 1003666242 1505499363 2007332484 3010998726 4516498089 6021997452 9032996178 13549494267 18065992356 27098988534 54197977068