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542578172 = 225312012131
BaseRepresentation
bin100000010101110…
…001010111111100
31101210221211022212
4200111301113330
52102400000142
6125501155552
716305560363
oct4025612774
91353854285
10542578172
112592a9014
1213185bbb8
1388542296
14520ba7da
1532978d82
hex205715fc

542578172 has 24 divisors (see below), whose sum is σ = 968686992. Its totient is φ = 265824000.

The previous prime is 542578009. The next prime is 542578187. The reversal of 542578172 is 271875245.

542578172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×5425781723 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253547 + ... + 255677.

It is an arithmetic number, because the mean of its divisors is an integer number (40361958).

Almost surely, 2542578172 is an apocalyptic number.

It is an amenable number.

542578172 is a deficient number, since it is larger than the sum of its proper divisors (426108820).

542578172 is a wasteful number, since it uses less digits than its factorization.

542578172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389 (or 3387 counting only the distinct ones).

The product of its digits is 156800, while the sum is 41.

The square root of 542578172 is about 23293.3074508538. The cubic root of 542578172 is about 815.6191974788.

The spelling of 542578172 in words is "five hundred forty-two million, five hundred seventy-eight thousand, one hundred seventy-two".

Divisors: 1 2 4 53 106 212 1201 2131 2402 4262 4804 8524 63653 112943 127306 225886 254612 451772 2559331 5118662 10237324 135644543 271289086 542578172