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28063310 = 2511255121
BaseRepresentation
bin110101100001…
…1011001001110
31221210202121212
41223003121032
524141011220
62441254422
7460351142
oct153033116
957722555
1028063310
1114928420
129494412
135a77612
143a27222
1526e50c5
hex1ac364e

28063310 has 16 divisors (see below), whose sum is σ = 55106352. Its totient is φ = 10204800.

The previous prime is 28063309. The next prime is 28063313. The reversal of 28063310 is 1336082.

It is a super-2 number, since 2×280633102 = 1575098736312200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063313) 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, 127451 + ... + 127670.

It is an arithmetic number, because the mean of its divisors is an integer number (3444147).

Almost surely, 228063310 is an apocalyptic number.

28063310 is a deficient number, since it is larger than the sum of its proper divisors (27043042).

28063310 is a wasteful number, since it uses less digits than its factorization.

28063310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255139.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 28063310 is about 5297.4814770795. The cubic root of 28063310 is about 303.8875897295.

Adding to 28063310 its reverse (1336082), we get a palindrome (29399392).

It can be divided in two parts, 2806 and 3310, that added together give a palindrome (6116).

The spelling of 28063310 in words is "twenty-eight million, sixty-three thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 110 255121 510242 1275605 2551210 2806331 5612662 14031655 28063310