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28795332 = 2232399611
BaseRepresentation
bin110110111011…
…0000111000100
32000011221202210
41231312013010
524332422312
62505103420
7466520256
oct155660704
960157683
1028795332
11152883a5
129787b70
135c72877
143b77cd6
1527dbe3c
hex1b761c4

28795332 has 12 divisors (see below), whose sum is σ = 67189136. Its totient is φ = 9598440.

The previous prime is 28795307. The next prime is 28795339. The reversal of 28795332 is 23359782.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×287953322 = 1658342289980448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28795339) 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, 1199794 + ... + 1199817.

Almost surely, 228795332 is an apocalyptic number.

It is an amenable number.

28795332 is an abundant number, since it is smaller than the sum of its proper divisors (38393804).

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

28795332 is a wasteful number, since it uses less digits than its factorization.

28795332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399618 (or 2399616 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 28795332 is about 5366.1282131533. The cubic root of 28795332 is about 306.5072112643.

The spelling of 28795332 in words is "twenty-eight million, seven hundred ninety-five thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 2399611 4799222 7198833 9598444 14397666 28795332