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28976424 = 2331207351
BaseRepresentation
bin110111010001…
…0010100101000
32000112011011220
41232202110220
524404221144
62513022040
7501203241
oct156422450
960464156
1028976424
11153a1464
129854920
136007119
143bc3cc8
152825919
hex1ba2528

28976424 has 16 divisors (see below), whose sum is σ = 72441120. Its totient is φ = 9658800.

The previous prime is 28976417. The next prime is 28976429. The reversal of 28976424 is 42467982.

It is not an unprimeable number, because it can be changed into a prime (28976429) by changing a digit.

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, 603652 + ... + 603699.

It is an arithmetic number, because the mean of its divisors is an integer number (4527570).

Almost surely, 228976424 is an apocalyptic number.

28976424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28976424 is an abundant number, since it is smaller than the sum of its proper divisors (43464696).

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

28976424 is a wasteful number, since it uses less digits than its factorization.

28976424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207360 (or 1207356 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 28976424 is about 5382.9753854165. The cubic root of 28976424 is about 307.1484037423.

The spelling of 28976424 in words is "twenty-eight million, nine hundred seventy-six thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 1207351 2414702 3622053 4829404 7244106 9658808 14488212 28976424