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28230376 = 2310193463
BaseRepresentation
bin110101110110…
…0001011101000
31222010020210111
41223230023220
524211333001
62445024104
7461645206
oct153541350
958106714
1028230376
1114a31999
129555034
135b05685
143a6c076
152729851
hex1aec2e8

28230376 has 16 divisors (see below), whose sum is σ = 52999200. Its totient is φ = 14097264.

The previous prime is 28230359. The next prime is 28230443. The reversal of 28230376 is 67303282.

It is an unprimeable number.

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, 6421 + ... + 9883.

It is an arithmetic number, because the mean of its divisors is an integer number (3312450).

Almost surely, 228230376 is an apocalyptic number.

It is an amenable number.

28230376 is a deficient number, since it is larger than the sum of its proper divisors (24768824).

28230376 is a wasteful number, since it uses less digits than its factorization.

28230376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488 (or 4484 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 28230376 is about 5313.2265150283. The cubic root of 28230376 is about 304.4894297558.

The spelling of 28230376 in words is "twenty-eight million, two hundred thirty thousand, three hundred seventy-six".

Divisors: 1 2 4 8 1019 2038 3463 4076 6926 8152 13852 27704 3528797 7057594 14115188 28230376