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28366265 = 543113163
BaseRepresentation
bin110110000110…
…1010110111001
31222101011012102
41230031112321
524230210030
62451553145
7463052324
oct154152671
958334172
1028366265
1115014aa4
1295bb7b5
135b52495
143aa57bb
152754c45
hex1b0d5b9

28366265 has 8 divisors (see below), whose sum is σ = 34121088. Its totient is φ = 22638640.

The previous prime is 28366249. The next prime is 28366279. The reversal of 28366265 is 56266382.

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

It is not a de Polignac number, because 28366265 - 24 = 28366249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4427 + ... + 8736.

It is an arithmetic number, because the mean of its divisors is an integer number (4265136).

Almost surely, 228366265 is an apocalyptic number.

It is an amenable number.

28366265 is a deficient number, since it is larger than the sum of its proper divisors (5754823).

28366265 is a wasteful number, since it uses less digits than its factorization.

28366265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13599.

The product of its digits is 103680, while the sum is 38.

The square root of 28366265 is about 5325.9989673300. The cubic root of 28366265 is about 304.9772087243.

The spelling of 28366265 in words is "twenty-eight million, three hundred sixty-six thousand, two hundred sixty-five".

Divisors: 1 5 431 2155 13163 65815 5673253 28366265