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542175813 = 32251240007
BaseRepresentation
bin100000010100001…
…111001001000101
31101210012101101200
4200110033021011
52102244111223
6125444413113
716302263334
oct4024171105
91353171350
10542175813
11259053793
121316a7199
13884310ba
1452013d1b
15328e9a43
hex2050f245

542175813 has 12 divisors (see below), whose sum is σ = 786266208. Its totient is φ = 360009000.

The previous prime is 542175791. The next prime is 542175817. The reversal of 542175813 is 318571245.

542175813 is a `hidden beast` number, since 54 + 21 + 7 + 581 + 3 = 666.

It is not a de Polignac number, because 542175813 - 212 = 542171717 is a prime.

It is a super-2 number, since 2×5421758132 = 587909224404421938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542175817) by changing a digit.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117745 + ... + 122262.

It is an arithmetic number, because the mean of its divisors is an integer number (65522184).

Almost surely, 2542175813 is an apocalyptic number.

It is an amenable number.

542175813 is a deficient number, since it is larger than the sum of its proper divisors (244090395).

542175813 is a wasteful number, since it uses less digits than its factorization.

542175813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240264 (or 240261 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 542175813 is about 23284.6690549812. The cubic root of 542175813 is about 815.4175350606.

The spelling of 542175813 in words is "five hundred forty-two million, one hundred seventy-five thousand, eight hundred thirteen".

Divisors: 1 3 9 251 753 2259 240007 720021 2160063 60241757 180725271 542175813