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54513212 = 22138911779
BaseRepresentation
bin1100111111110…
…0111000111100
310210120120001212
43033330320330
5102423410322
65224223552
71231232435
oct317747074
9123516055
1054513212
1128853646
121630abb8
13b3a8750
14735048c
154bbc0e2
hex33fce3c

54513212 has 24 divisors (see below), whose sum is σ = 103899600. Its totient is φ = 24875136.

The previous prime is 54513209. The next prime is 54513233. The reversal of 54513212 is 21231545.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (4329150).

Almost surely, 254513212 is an apocalyptic number.

54513212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

54513212 is a deficient number, since it is larger than the sum of its proper divisors (49386388).

54513212 is a wasteful number, since it uses less digits than its factorization.

54513212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885 (or 11883 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 54513212 is about 7383.3063054434. The cubic root of 54513212 is about 379.1699611087.

Adding to 54513212 its reverse (21231545), we get a palindrome (75744757).

The spelling of 54513212 in words is "fifty-four million, five hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 11779 23558 47116 153127 306254 612508 1048331 2096662 4193324 13628303 27256606 54513212