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28054008572448 = 2533744383177953
BaseRepresentation
bin1100110000011110101010…
…01101110010101000100000
310200022221022002111122210010
412120033111031302220200
512134114102143304243
6135355500021204520
75623556325233055
oct630172515625040
9120287262448703
1028054008572448
118a36702522111
12319107a860740
13128663527b171
146cdb6d77302c
15339b3855b433
hex1983d5372a20

28054008572448 has 96 divisors (see below), whose sum is σ = 75634219777536. Its totient is φ = 9098341244928.

The previous prime is 28054008572441. The next prime is 28054008572483. The reversal of 28054008572448 is 84427580045082.

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

It is not an unprimeable number, because it can be changed into a prime (28054008572441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157559440 + ... + 157737392.

It is an arithmetic number, because the mean of its divisors is an integer number (787856456016).

Almost surely, 228054008572448 is an apocalyptic number.

It is an amenable number.

28054008572448 is an abundant number, since it is smaller than the sum of its proper divisors (47580211205088).

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

28054008572448 is a wasteful number, since it uses less digits than its factorization.

28054008572448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222386 (or 222378 counting only the distinct ones).

The product of its (nonzero) digits is 22937600, while the sum is 57.

The spelling of 28054008572448 in words is "twenty-eight trillion, fifty-four billion, eight million, five hundred seventy-two thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 37 48 74 96 111 148 222 296 444 592 888 1184 1776 3552 44383 88766 133149 177532 177953 266298 355064 355906 532596 533859 710128 711812 1065192 1067718 1420256 1423624 1642171 2130384 2135436 2847248 3284342 4260768 4270872 4926513 5694496 6568684 6584261 8541744 9853026 13137368 13168522 17083488 19706052 19752783 26274736 26337044 39412104 39505566 52549472 52674088 78824208 79011132 105348176 157648416 158022264 210696352 316044528 632089056 7898087999 15796175998 23694263997 31592351996 47388527994 63184703992 94777055988 126369407984 189554111976 252738815968 292229255963 379108223952 584458511926 758216447904 876687767889 1168917023852 1753375535778 2337834047704 3506751071556 4675668095408 7013502143112 9351336190816 14027004286224 28054008572448