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28814324 = 2271193553
BaseRepresentation
bin110110111101…
…0101111110100
32000012220211012
41231322233310
524334024244
62505331352
7466626530
oct155725764
960186735
1028814324
11152a06a0
129796b58
135c7b3c6
143b80bc0
1527e289e
hex1b7abf4

28814324 has 24 divisors (see below), whose sum is σ = 62868288. Its totient is φ = 11226240.

The previous prime is 28814311. The next prime is 28814333. The reversal of 28814324 is 42341882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46469 + ... + 47084.

It is an arithmetic number, because the mean of its divisors is an integer number (2619512).

Almost surely, 228814324 is an apocalyptic number.

It is an amenable number.

28814324 is an abundant number, since it is smaller than the sum of its proper divisors (34053964).

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

28814324 is a wasteful number, since it uses less digits than its factorization.

28814324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93575 (or 93573 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 28814324 is about 5367.8975400058. The cubic root of 28814324 is about 306.5745822029.

The spelling of 28814324 in words is "twenty-eight million, eight hundred fourteen thousand, three hundred twenty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 93553 187106 374212 654871 1029083 1309742 2058166 2619484 4116332 7203581 14407162 28814324