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28184296 = 2371926489
BaseRepresentation
bin110101110000…
…0111011101000
31222000220120211
41223200323220
524203344141
62444030504
7461363650
oct153407350
958026524
1028184296
1114a00308
129532434
135aba6ca
143a59360
15271ad81
hex1ae0ee8

28184296 has 32 divisors (see below), whose sum is σ = 63576000. Its totient is φ = 11442816.

The previous prime is 28184291. The next prime is 28184297. The reversal of 28184296 is 69248182.

It is not an unprimeable number, because it can be changed into a prime (28184291) 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, 12181 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (1986750).

Almost surely, 228184296 is an apocalyptic number.

It is an amenable number.

28184296 is an abundant number, since it is smaller than the sum of its proper divisors (35391704).

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

28184296 is a wasteful number, since it uses less digits than its factorization.

28184296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26521 (or 26517 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 28184296 is about 5308.8883958885. Note that the first 3 decimals coincide. The cubic root of 28184296 is about 304.3236684262.

The spelling of 28184296 in words is "twenty-eight million, one hundred eighty-four thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 26489 52978 105956 185423 211912 370846 503291 741692 1006582 1483384 2013164 3523037 4026328 7046074 14092148 28184296