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28364230 = 252836423
BaseRepresentation
bin110110000110…
…0110111000110
31222101001102001
41230030313012
524230123410
62451535514
7463043356
oct154146706
958331361
1028364230
1115013514
1295ba59a
135b5158b
143aa4b66
15275433a
hex1b0cdc6

28364230 has 8 divisors (see below), whose sum is σ = 51055632. Its totient is φ = 11345688.

The previous prime is 28364227. The next prime is 28364261. The reversal of 28364230 is 3246382.

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, 1418202 + ... + 1418221.

It is an arithmetic number, because the mean of its divisors is an integer number (6381954).

Almost surely, 228364230 is an apocalyptic number.

28364230 is a deficient number, since it is larger than the sum of its proper divisors (22691402).

28364230 is a wasteful number, since it uses less digits than its factorization.

28364230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836430.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 28364230 is about 5325.8079199310. The cubic root of 28364230 is about 304.9699155133.

The spelling of 28364230 in words is "twenty-eight million, three hundred sixty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 2836423 5672846 14182115 28364230