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28058028208 = 247283885223
BaseRepresentation
bin11010001000011000…
…111000100010110000
32200102102010111212221
4122020120320202300
5424430323400313
620520100530424
72012206206340
oct321030704260
980372114787
1028058028208
1110999030971
1255306b0a14
132851c57372
141502576d20
15ae33c9c8d
hex6886388b0

28058028208 has 40 divisors (see below), whose sum is σ = 62348096768. Its totient is φ = 11982364992.

The previous prime is 28058028179. The next prime is 28058028221. The reversal of 28058028208 is 80282085082.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 410916 + ... + 474307.

Almost surely, 228058028208 is an apocalyptic number.

28058028208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28058028208 is an abundant number, since it is smaller than the sum of its proper divisors (34290068560).

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

28058028208 is a wasteful number, since it uses less digits than its factorization.

28058028208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885521 (or 885515 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 28058028208 in words is "twenty-eight billion, fifty-eight million, twenty-eight thousand, two hundred eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 283 566 1132 1981 2264 3962 4528 7924 15848 31696 885223 1770446 3540892 6196561 7081784 12393122 14163568 24786244 49572488 99144976 250518109 501036218 1002072436 1753626763 2004144872 3507253526 4008289744 7014507052 14029014104 28058028208