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28364995 = 55672999
BaseRepresentation
bin110110000110…
…1000011000011
31222101002110101
41230031003003
524230134440
62451543231
7463045531
oct154150303
958332411
1028364995
111501404a
1295bab17
135b51a29
143aa5151
15275469a
hex1b0d0c3

28364995 has 4 divisors (see below), whose sum is σ = 34038000. Its totient is φ = 22691992.

The previous prime is 28364971. The next prime is 28365019. The reversal of 28364995 is 59946382.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28364971) and next prime (28365019).

It is a cyclic number.

It is not a de Polignac number, because 28364995 - 27 = 28364867 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2836495 + ... + 2836504.

It is an arithmetic number, because the mean of its divisors is an integer number (8509500).

Almost surely, 228364995 is an apocalyptic number.

28364995 is a deficient number, since it is larger than the sum of its proper divisors (5673005).

28364995 is an equidigital number, since it uses as much as digits as its factorization.

28364995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673004.

The product of its digits is 466560, while the sum is 46.

The square root of 28364995 is about 5325.8797395360. The cubic root of 28364995 is about 304.9726572281.

The spelling of 28364995 in words is "twenty-eight million, three hundred sixty-four thousand, nine hundred ninety-five".

Divisors: 1 5 5672999 28364995