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28458848 = 251180849
BaseRepresentation
bin110110010001…
…1111101100000
31222112212012102
41230203331200
524241140343
62453545532
7463616255
oct154437540
958485172
1028458848
1115078610
1296452a8
135b85672
143acb42c
1527723b8
hex1b23f60

28458848 has 24 divisors (see below), whose sum is σ = 61122600. Its totient is φ = 12935680.

The previous prime is 28458847. The next prime is 28458863. The reversal of 28458848 is 84885482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28458841) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40073 + ... + 40776.

It is an arithmetic number, because the mean of its divisors is an integer number (2546775).

Almost surely, 228458848 is an apocalyptic number.

It is an amenable number.

28458848 is an abundant number, since it is smaller than the sum of its proper divisors (32663752).

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

28458848 is a wasteful number, since it uses less digits than its factorization.

28458848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80870 (or 80862 counting only the distinct ones).

The product of its digits is 655360, while the sum is 47.

The square root of 28458848 is about 5334.6834957662. The cubic root of 28458848 is about 305.3086475130.

The spelling of 28458848 in words is "twenty-eight million, four hundred fifty-eight thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 80849 161698 323396 646792 889339 1293584 1778678 2587168 3557356 7114712 14229424 28458848