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54105193386 = 23217573171049
BaseRepresentation
bin110010011000111010…
…111011101110101010
312011122200110121021100
4302120322323232222
51341301412142021
640504450022230
73623530361406
oct623072735652
9164580417240
1054105193386
1120a44a75662
12a59b877976
135143402a3a
142893a28106
151619e98626
hexc98ebbbaa

54105193386 has 24 divisors (see below), whose sum is σ = 117235275300. Its totient is φ = 18033932736.

The previous prime is 54105193349. The next prime is 54105193393. The reversal of 54105193386 is 68339150145.

54105193386 is a `hidden beast` number, since 54 + 1 + 0 + 519 + 3 + 3 + 86 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51747605361 + 2357588025 = 227481^2 + 48555^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230790 + ... + 401838.

Almost surely, 254105193386 is an apocalyptic number.

54105193386 is an abundant number, since it is smaller than the sum of its proper divisors (63130081914).

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

54105193386 is a wasteful number, since it uses less digits than its factorization.

54105193386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188630 (or 188627 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 54105193386 in words is "fifty-four billion, one hundred five million, one hundred ninety-three thousand, three hundred eighty-six".

Divisors: 1 2 3 6 9 18 17573 35146 52719 105438 158157 171049 316314 342098 513147 1026294 1539441 3078882 3005844077 6011688154 9017532231 18035064462 27052596693 54105193386