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28759168704 = 263721398191
BaseRepresentation
bin11010110010001011…
…100001011011000000
32202020021110010211110
4122302023201123000
5432344321344304
621113424443320
72035451620620
oct326213413300
982207403743
1028759168704
111121888a122
1256a7479540
1329342a58b6
14156b72a880
15b34c25289
hex6b22e16c0

28759168704 has 56 divisors (see below), whose sum is σ = 86962252288. Its totient is φ = 8216904960.

The previous prime is 28759168693. The next prime is 28759168723. The reversal of 28759168704 is 40786195782.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10697752 + ... + 10700439.

Almost surely, 228759168704 is an apocalyptic number.

28759168704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28759168704 is an abundant number, since it is smaller than the sum of its proper divisors (58203083584).

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

28759168704 is a wasteful number, since it uses less digits than its factorization.

28759168704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21398213 (or 21398203 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 28759168704 in words is "twenty-eight billion, seven hundred fifty-nine million, one hundred sixty-eight thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 21398191 42796382 64194573 85592764 128389146 149787337 171185528 256778292 299574674 342371056 449362011 513556584 599149348 684742112 898724022 1027113168 1198298696 1369484224 1797448044 2054226336 2396597392 3594896088 4108452672 4793194784 7189792176 9586389568 14379584352 28759168704