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28484076 = 2234395407
BaseRepresentation
bin110110010101…
…0000111101100
31222121010210210
41230222013230
524242442301
62454302420
7464052645
oct154520754
958533723
1028484076
1115095565
129657a10
135b93caa
143ad66cc
152779ad6
hex1b2a1ec

28484076 has 24 divisors (see below), whose sum is σ = 66626560. Its totient is φ = 9471312.

The previous prime is 28484063. The next prime is 28484077. The reversal of 28484076 is 67048482.

It is a super-2 number, since 2×284840762 = 1622685171147552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28484077) 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 7 ways as a sum of consecutive naturals, for example, 2565 + ... + 7971.

Almost surely, 228484076 is an apocalyptic number.

It is an amenable number.

28484076 is an abundant number, since it is smaller than the sum of its proper divisors (38142484).

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

28484076 is a wasteful number, since it uses less digits than its factorization.

28484076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853 (or 5851 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 28484076 is about 5337.0474983834. The cubic root of 28484076 is about 305.3988368244.

The spelling of 28484076 in words is "twenty-eight million, four hundred eighty-four thousand, seventy-six".

Divisors: 1 2 3 4 6 12 439 878 1317 1756 2634 5268 5407 10814 16221 21628 32442 64884 2373673 4747346 7121019 9494692 14242038 28484076