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54584145 = 3357115989
BaseRepresentation
bin1101000000111…
…0001101010001
310210201011101000
43100032031101
5102433143040
65225532213
71231646310
oct320161521
9123634330
1054584145
11288a1970
1216344069
13b401b15
14736c277
154bd3130
hex340e351

54584145 has 128 divisors (see below), whose sum is σ = 124416000. Its totient is φ = 22049280.

The previous prime is 54584143. The next prime is 54584237. The reversal of 54584145 is 54148545.

It is a happy number.

It is not a de Polignac number, because 54584145 - 21 = 54584143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54584143) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 613261 + ... + 613349.

It is an arithmetic number, because the mean of its divisors is an integer number (972000).

Almost surely, 254584145 is an apocalyptic number.

54584145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54584145 is an abundant number, since it is smaller than the sum of its proper divisors (69831855).

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

54584145 is a wasteful number, since it uses less digits than its factorization.

54584145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 174 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 54584145 is about 7388.1083505861. The cubic root of 54584145 is about 379.3343494265.

Subtracting from 54584145 its reverse (54148545), we obtain a square (435600 = 6602).

The spelling of 54584145 in words is "fifty-four million, five hundred eighty-four thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 11 15 21 27 33 35 45 55 59 63 77 89 99 105 135 165 177 189 231 267 295 297 315 385 413 445 495 531 623 649 693 801 885 945 979 1155 1239 1335 1485 1593 1869 1947 2065 2079 2403 2655 2937 3115 3245 3465 3717 4005 4543 4895 5251 5607 5841 6195 6853 7965 8811 9345 9735 10395 11151 12015 13629 14685 15753 16821 17523 18585 20559 22715 26255 26433 28035 29205 34265 36757 40887 44055 47259 55755 57761 61677 68145 78765 84105 87615 102795 110271 122661 132165 141777 173283 183785 185031 204435 236295 288805 308385 330813 404327 519849 551355 613305 708885 866415 925155 992439 1212981 1559547 1654065 2021635 2599245 3638943 4962195 6064905 7797735 10916829 18194715 54584145