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542175918 = 23233928811
BaseRepresentation
bin100000010100001…
…111001010101110
31101210012101112120
4200110033022232
52102244112133
6125444413410
716302263544
oct4024171256
91353171476
10542175918
11259053879
121316a7266
138843116b
1452013d94
15328e9ab3
hex2050f2ae

542175918 has 16 divisors (see below), whose sum is σ = 1131497856. Its totient is φ = 172867640.

The previous prime is 542175901. The next prime is 542175943. The reversal of 542175918 is 819571245.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 542175918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964268 + ... + 1964543.

It is an arithmetic number, because the mean of its divisors is an integer number (70718616).

Almost surely, 2542175918 is an apocalyptic number.

542175918 is an abundant number, since it is smaller than the sum of its proper divisors (589321938).

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

542175918 is a wasteful number, since it uses less digits than its factorization.

542175918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928839.

The product of its digits is 100800, while the sum is 42.

The square root of 542175918 is about 23284.6713096835. The cubic root of 542175918 is about 815.4175876996.

The spelling of 542175918 in words is "five hundred forty-two million, one hundred seventy-five thousand, nine hundred eighteen".

Divisors: 1 2 3 6 23 46 69 138 3928811 7857622 11786433 23572866 90362653 180725306 271087959 542175918