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54168943655 = 586312553637
BaseRepresentation
bin110010011100101110…
…000111110000100111
312011211010102110012102
4302130232013300213
51341414222144110
640515044242315
73625233265301
oct623456076047
9164733373172
1054168943655
1120a77a58132
12a5b90a039b
1351536939a8
14289c2a0971
15162088c5a5
hexc9cb87c27

54168943655 has 8 divisors (see below), whose sum is σ = 65078059392. Its totient is φ = 43284936928.

The previous prime is 54168943643. The next prime is 54168943657. The reversal of 54168943655 is 55634986145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54168943655 - 234 = 36989074471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54168943655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54168943657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6272504 + ... + 6281133.

It is an arithmetic number, because the mean of its divisors is an integer number (8134757424).

Almost surely, 254168943655 is an apocalyptic number.

54168943655 is a deficient number, since it is larger than the sum of its proper divisors (10909115737).

54168943655 is a wasteful number, since it uses less digits than its factorization.

54168943655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554505.

The product of its digits is 15552000, while the sum is 56.

The spelling of 54168943655 in words is "fifty-four billion, one hundred sixty-eight million, nine hundred forty-three thousand, six hundred fifty-five".

Divisors: 1 5 863 4315 12553637 62768185 10833788731 54168943655