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28013738075 = 522110753089
BaseRepresentation
bin11010000101101111…
…111011100001011011
32200022022210100020122
4122011233323201123
5424333004104300
620511435343455
72011130562521
oct320557734133
980268710218
1028013738075
1110976030054
1255198b1b8b
132845a1ab9b
1414da728311
15ade57bc85
hex685bfb85b

28013738075 has 12 divisors (see below), whose sum is σ = 34739335320. Its totient is φ = 22409506560.

The previous prime is 28013737993. The next prime is 28013738087. The reversal of 28013738075 is 57083731082.

It is not a de Polignac number, because 28013738075 - 214 = 28013721691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501131 + ... + 554219.

It is an arithmetic number, because the mean of its divisors is an integer number (2894944610).

Almost surely, 228013738075 is an apocalyptic number.

28013738075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28013738075 is a deficient number, since it is larger than the sum of its proper divisors (6725597245).

28013738075 is a wasteful number, since it uses less digits than its factorization.

28013738075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74206 (or 74201 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 28013738075 in words is "twenty-eight billion, thirteen million, seven hundred thirty-eight thousand, seventy-five".

Divisors: 1 5 25 21107 53089 105535 265445 527675 1327225 1120549523 5602747615 28013738075