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28748267716484 = 2228872489458583
BaseRepresentation
bin1101000100101011110100…
…10010001111111110000100
310202210022022012120100122002
412202111322102033332010
512232002423013411414
6141050434420124432
76024664605466151
oct642257222177604
9122708265510562
1028748267716484
119184087729748
123283734836718
131306c47243ac4
147155d0445228
1534cc1d6194de
hex1a257a48ff84

28748267716484 has 12 divisors (see below), whose sum is σ = 50326894734144. Its totient is φ = 14369154935304.

The previous prime is 28748267716477. The next prime is 28748267716513. The reversal of 28748267716484 is 48461776284782.

It is a super-3 number, since 3×287482677164843 (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244717744 + ... + 1244740839.

It is an arithmetic number, because the mean of its divisors is an integer number (4193907894512).

Almost surely, 228748267716484 is an apocalyptic number.

It is an amenable number.

28748267716484 is a deficient number, since it is larger than the sum of its proper divisors (21578627017660).

28748267716484 is a wasteful number, since it uses less digits than its factorization.

28748267716484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489461474 (or 2489461472 counting only the distinct ones).

The product of its digits is 1618477056, while the sum is 74.

The spelling of 28748267716484 in words is "twenty-eight trillion, seven hundred forty-eight billion, two hundred sixty-seven million, seven hundred sixteen thousand, four hundred eighty-four".

Divisors: 1 2 4 2887 5774 11548 2489458583 4978917166 9957834332 7187066929121 14374133858242 28748267716484