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542286786 = 23431209701
BaseRepresentation
bin100000010100101…
…010001111000010
31101210102000121210
4200110222033002
52102311134121
6125451030550
716303235016
oct4024521702
91353360553
10542286786
1125911a0a8
1213173b456
138846c772
1452042546
153291c876
hex2052a3c2

542286786 has 16 divisors (see below), whose sum is σ = 1087095168. Its totient is φ = 180342000.

The previous prime is 542286743. The next prime is 542286817. The reversal of 542286786 is 687682245.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 102265 + ... + 107436.

It is an arithmetic number, because the mean of its divisors is an integer number (67943448).

Almost surely, 2542286786 is an apocalyptic number.

542286786 is an abundant number, since it is smaller than the sum of its proper divisors (544808382).

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

542286786 is a wasteful number, since it uses less digits than its factorization.

542286786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210137.

The product of its digits is 1290240, while the sum is 48.

The square root of 542286786 is about 23287.0518958498. The cubic root of 542286786 is about 815.4731647136.

The spelling of 542286786 in words is "five hundred forty-two million, two hundred eighty-six thousand, seven hundred eighty-six".

Divisors: 1 2 3 6 431 862 1293 2586 209701 419402 629103 1258206 90381131 180762262 271143393 542286786