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54020186 = 21117144439
BaseRepresentation
bin1100111000010…
…0100001011010
310202122111202122
43032010201122
5102312121221
65205501242
71224110153
oct316044132
9122574678
1054020186
1128547190
1216111822
13b26520c
14726292a
154b20eab
hex338485a

54020186 has 16 divisors (see below), whose sum is σ = 93597120. Its totient is φ = 23110080.

The previous prime is 54020179. The next prime is 54020221. The reversal of 54020186 is 68102045.

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, 71846 + ... + 72593.

It is an arithmetic number, because the mean of its divisors is an integer number (5849820).

Almost surely, 254020186 is an apocalyptic number.

54020186 is a deficient number, since it is larger than the sum of its proper divisors (39576934).

54020186 is a wasteful number, since it uses less digits than its factorization.

54020186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144469.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 54020186 is about 7349.8425833483. The cubic root of 54020186 is about 378.0234068165.

The spelling of 54020186 in words is "fifty-four million, twenty thousand, one hundred eighty-six".

Divisors: 1 2 11 17 22 34 187 374 144439 288878 1588829 2455463 3177658 4910926 27010093 54020186