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54197329109 = 72113118012
BaseRepresentation
bin110010011110011010…
…011001110011010101
312011220002211120201112
4302132122121303111
51341444004012414
640521540504405
73626026460600
oct623632316325
9164802746645
1054197329109
1120a91a85590
12a6066ab105
135159521b11
1428a1d6d337
1516230e7d3e
hexc9e699cd5

54197329109 has 36 divisors (see below), whose sum is σ = 71035380864. Its totient is φ = 40846680000.

The previous prime is 54197329097. The next prime is 54197329169. The reversal of 54197329109 is 90192379145.

It is not a de Polignac number, because 54197329109 - 228 = 53928893653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54197329169) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30092009 + ... + 30093809.

It is an arithmetic number, because the mean of its divisors is an integer number (1973205024).

Almost surely, 254197329109 is an apocalyptic number.

It is an amenable number.

54197329109 is a deficient number, since it is larger than the sum of its proper divisors (16838051755).

54197329109 is an equidigital number, since it uses as much as digits as its factorization.

54197329109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 54197329109 in words is "fifty-four billion, one hundred ninety-seven million, three hundred twenty-nine thousand, one hundred nine".

Divisors: 1 7 11 31 49 77 217 341 539 1519 1801 2387 12607 16709 19811 55831 88249 138677 390817 614141 970739 2735719 3243601 4298987 22705207 30092909 35679611 100551631 158936449 249757277 703861417 1106067941 1748300939 4927029919 7742475587 54197329109