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505223212 = 22139715831
BaseRepresentation
bin11110000111010…
…001100000101100
31022012122222221211
4132013101200230
52013314120322
6122044404204
715343216654
oct3607214054
91265588854
10505223212
1123a20474a
12121246664
1380893660
144b155364
152e54ab77
hex1e1d182c

505223212 has 12 divisors (see below), whose sum is σ = 952151536. Its totient is φ = 233179920.

The previous prime is 505223209. The next prime is 505223233. The reversal of 505223212 is 212322505.

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 3 ways as a sum of consecutive naturals, for example, 4857864 + ... + 4857967.

Almost surely, 2505223212 is an apocalyptic number.

505223212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

505223212 is a deficient number, since it is larger than the sum of its proper divisors (446928324).

505223212 is a wasteful number, since it uses less digits than its factorization.

505223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9715848 (or 9715846 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505223212 is about 22477.1709073896. The cubic root of 505223212 is about 796.4547349951.

Adding to 505223212 its reverse (212322505), we get a palindrome (717545717).

The spelling of 505223212 in words is "five hundred five million, two hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 9715831 19431662 38863324 126305803 252611606 505223212