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28500114 = 231953289
BaseRepresentation
bin110110010111…
…0000010010010
31222121221210210
41230232002102
524244000424
62454504550
7464150466
oct154560222
958557723
1028500114
11150a6615
129665156
135b9b396
143adc4a6
15277e729
hex1b2e092

28500114 has 48 divisors (see below), whose sum is σ = 61840800. Its totient is φ = 8731008.

The previous prime is 28500113. The next prime is 28500137. The reversal of 28500114 is 41100582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 320182 + ... + 320270.

It is an arithmetic number, because the mean of its divisors is an integer number (1288350).

Almost surely, 228500114 is an apocalyptic number.

28500114 is an abundant number, since it is smaller than the sum of its proper divisors (33340686).

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

28500114 is a wasteful number, since it uses less digits than its factorization.

28500114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 28500114 is about 5338.5498030832. The cubic root of 28500114 is about 305.4561444883.

Adding to 28500114 its reverse (41100582), we get a palindrome (69600696).

The spelling of 28500114 in words is "twenty-eight million, five hundred thousand, one hundred fourteen".

Divisors: 1 2 3 6 19 38 53 57 89 106 114 159 178 267 318 534 1007 1691 2014 2809 3021 3382 4717 5073 5618 6042 8427 9434 10146 14151 16854 28302 53371 89623 106742 160113 179246 250001 268869 320226 500002 537738 750003 1500006 4750019 9500038 14250057 28500114