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28548800672 = 257177497059
BaseRepresentation
bin11010100101101001…
…000010000010100000
32201200121121100010212
4122211221002002200
5431431443110142
621040511513252
72030315542010
oct324551020240
981617540125
1028548800672
1111120065547
125648b28828
1328cc82b382
14154b809c40
15b2151dd82
hex6a5a420a0

28548800672 has 48 divisors (see below), whose sum is σ = 68013328320. Its totient is φ = 11515481088.

The previous prime is 28548800663. The next prime is 28548800713. The reversal of 28548800672 is 27600884582.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28548800672.

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, 3744722 + ... + 3752337.

It is an arithmetic number, because the mean of its divisors is an integer number (1416944340).

Almost surely, 228548800672 is an apocalyptic number.

It is an amenable number.

28548800672 is an abundant number, since it is smaller than the sum of its proper divisors (39464527648).

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

28548800672 is a wasteful number, since it uses less digits than its factorization.

28548800672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497093 (or 7497085 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 28548800672 in words is "twenty-eight billion, five hundred forty-eight million, eight hundred thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 7497059 14994118 29988236 52479413 59976472 104958826 119952944 127450003 209917652 239905888 254900006 419835304 509800012 839670608 892150021 1019600024 1679341216 1784300042 2039200048 3568600084 4078400096 7137200168 14274400336 28548800672