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28366054 = 231457517
BaseRepresentation
bin110110000110…
…1010011100110
31222101010220121
41230031103212
524230203204
62451552154
7463051603
oct154152346
958333817
1028366054
1115014922
1295bb65a
135b52362
143aa56aa
152754b54
hex1b0d4e6

28366054 has 8 divisors (see below), whose sum is σ = 43921728. Its totient is φ = 13725480.

The previous prime is 28366049. The next prime is 28366067. The reversal of 28366054 is 45066382.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 228697 + ... + 228820.

It is an arithmetic number, because the mean of its divisors is an integer number (5490216).

Almost surely, 228366054 is an apocalyptic number.

28366054 is a deficient number, since it is larger than the sum of its proper divisors (15555674).

28366054 is a wasteful number, since it uses less digits than its factorization.

28366054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457550.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 28366054 is about 5325.9791588026. The cubic root of 28366054 is about 304.9764525402.

The spelling of 28366054 in words is "twenty-eight million, three hundred sixty-six thousand, fifty-four".

Divisors: 1 2 31 62 457517 915034 14183027 28366054