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512420044444 = 227112636325861
BaseRepresentation
bin1110111010011101001…
…11010101111010011100
31210222122102201100020121
413131032213111322130
531343414012410234
61031222535524324
752010150340430
oct7351647257234
91728572640217
10512420044444
11188352835740
12833885296a4
13394233215b9
141ab309429c0
15d4e11c64b4
hex774e9d5e9c

512420044444 has 48 divisors (see below), whose sum is σ = 1122258525696. Its totient is φ = 198885038400.

The previous prime is 512420044427. The next prime is 512420044453. The reversal of 512420044444 is 444440024215.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3081927 + ... + 3243934.

It is an arithmetic number, because the mean of its divisors is an integer number (23380385952).

Almost surely, 2512420044444 is an apocalyptic number.

It is an amenable number.

512420044444 is an abundant number, since it is smaller than the sum of its proper divisors (609838481252).

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

512420044444 is a wasteful number, since it uses less digits than its factorization.

512420044444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326146 (or 6326144 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 512420044444 its reverse (444440024215), we get a palindrome (956860068659).

The spelling of 512420044444 in words is "five hundred twelve billion, four hundred twenty million, forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 263 308 526 1052 1841 2893 3682 5786 7364 11572 20251 40502 81004 6325861 12651722 25303444 44281027 69584471 88562054 139168942 177124108 278337884 487091297 974182594 1663701443 1948365188 3327402886 6654805772 11645910101 18300715873 23291820202 36601431746 46583640404 73202863492 128105011111 256210022222 512420044444