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542456865 = 33535311383
BaseRepresentation
bin100000010101010…
…011110000100001
31101210201122221000
4200111103300201
52102332104430
6125454422213
716304543616
oct4025236041
91353648830
10542456865
11259225965
12131801969
13884cbcc2
145208850d
1532952e60
hex20553c21

542456865 has 32 divisors (see below), whose sum is σ = 967184640. Its totient is φ = 288465408.

The previous prime is 542456851. The next prime is 542456881. The reversal of 542456865 is 568654245.

542456865 is a `hidden beast` number, since 5 + 4 + 24 + 568 + 65 = 666.

It is not a de Polignac number, because 542456865 - 25 = 542456833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 542456865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41964 + ... + 53346.

It is an arithmetic number, because the mean of its divisors is an integer number (30224520).

Almost surely, 2542456865 is an apocalyptic number.

It is an amenable number.

542456865 is a deficient number, since it is larger than the sum of its proper divisors (424727775).

542456865 is a wasteful number, since it uses less digits than its factorization.

542456865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750 (or 11744 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 542456865 is about 23290.7034028601. The cubic root of 542456865 is about 815.5584088849.

The spelling of 542456865 in words is "five hundred forty-two million, four hundred fifty-six thousand, eight hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 135 353 1059 1765 3177 5295 9531 11383 15885 34149 47655 56915 102447 170745 307341 512235 1536705 4018199 12054597 20090995 36163791 60272985 108491373 180818955 542456865