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540819018 = 23413192531
BaseRepresentation
bin100000001111000…
…011111001001010
31101200122110020000
4200033003321022
52101422202033
6125355343430
716254612555
oct4017037112
91350573200
10540819018
11258307373
12131151b76
138807766c
1451b7d69c
153272ca13
hex203c3e4a

540819018 has 40 divisors (see below), whose sum is σ = 1213233120. Its totient is φ = 180065160.

The previous prime is 540818969. The next prime is 540819023. The reversal of 540819018 is 810918045.

It is a Curzon 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 19 ways as a sum of consecutive naturals, for example, 212413 + ... + 214943.

It is an arithmetic number, because the mean of its divisors is an integer number (30330828).

Almost surely, 2540819018 is an apocalyptic number.

540819018 is an abundant number, since it is smaller than the sum of its proper divisors (672414102).

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

540819018 is a wasteful number, since it uses less digits than its factorization.

540819018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3855 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 540819018 is about 23255.5158618337. The cubic root of 540819018 is about 814.7367727340.

The spelling of 540819018 in words is "five hundred forty million, eight hundred nineteen thousand, eighteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 1319 2531 2638 3957 5062 7593 7914 11871 15186 22779 23742 35613 45558 68337 71226 106839 136674 205011 213678 410022 3338389 6676778 10015167 20030334 30045501 60091002 90136503 180273006 270409509 540819018