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28354803472 = 2417223946559
BaseRepresentation
bin11010011010000100…
…111111011100010000
32201012002120021000101
4122122010333130100
5431032312202342
621005341502144
72022441565342
oct323204773420
981162507011
1028354803472
1111030602586
1255b3b71954
13289b596428
14152db4b292
15b0e49d3b7
hex69a13f710

28354803472 has 40 divisors (see below), whose sum is σ = 58196275200. Its totient is φ = 13337190912.

The previous prime is 28354803469. The next prime is 28354803473. The reversal of 28354803472 is 27430845382.

It is not an unprimeable number, because it can be changed into a prime (28354803473) by changing a digit.

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, 585729 + ... + 632287.

It is an arithmetic number, because the mean of its divisors is an integer number (1454906880).

Almost surely, 228354803472 is an apocalyptic number.

It is an amenable number.

28354803472 is an abundant number, since it is smaller than the sum of its proper divisors (29841471728).

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

28354803472 is a wasteful number, since it uses less digits than its factorization.

28354803472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48823 (or 48817 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 28354803472 in words is "twenty-eight billion, three hundred fifty-four million, eight hundred three thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 17 34 68 136 272 2239 4478 8956 17912 35824 38063 46559 76126 93118 152252 186236 304504 372472 609008 744944 791503 1583006 3166012 6332024 12664048 104245601 208491202 416982404 833964808 1667929616 1772175217 3544350434 7088700868 14177401736 28354803472