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54757865724 = 2234563155477
BaseRepresentation
bin110010111111110100…
…101011100011111100
312020100011120210101220
4302333310223203330
51344121003200344
641053323033340
73645644115252
oct627764534374
9166304523356
1054757865724
112124a429a91
12a74236b850
1352186b11a3
1429165a25d2
15165741cc19
hexcbfd2b8fc

54757865724 has 12 divisors (see below), whose sum is σ = 127768353384. Its totient is φ = 18252621904.

The previous prime is 54757865717. The next prime is 54757865737. The reversal of 54757865724 is 42756875745.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×547578657242 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2281577727 + ... + 2281577750.

It is an arithmetic number, because the mean of its divisors is an integer number (10647362782).

Almost surely, 254757865724 is an apocalyptic number.

It is an amenable number.

54757865724 is an abundant number, since it is smaller than the sum of its proper divisors (73010487660).

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

54757865724 is a wasteful number, since it uses less digits than its factorization.

54757865724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563155484 (or 4563155482 counting only the distinct ones).

The product of its digits is 65856000, while the sum is 60.

The spelling of 54757865724 in words is "fifty-four billion, seven hundred fifty-seven million, eight hundred sixty-five thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 4563155477 9126310954 13689466431 18252621908 27378932862 54757865724