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28063318 = 2711071847
BaseRepresentation
bin110101100001…
…1011001010110
31221210202122011
41223003121112
524141011233
62441254434
7460351153
oct153033126
957722564
1028063318
1114928428
12949441a
135a7761a
143a2722a
1526e50cd
hex1ac3656

28063318 has 16 divisors (see below), whose sum is σ = 43110144. Its totient is φ = 13697320.

The previous prime is 28063313. The next prime is 28063319. The reversal of 28063318 is 81336082.

It is a self number, because there is not a number n which added to its sum of digits gives 28063318.

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, 14271 + ... + 16117.

It is an arithmetic number, because the mean of its divisors is an integer number (2694384).

Almost surely, 228063318 is an apocalyptic number.

28063318 is a deficient number, since it is larger than the sum of its proper divisors (15046826).

28063318 is a wasteful number, since it uses less digits than its factorization.

28063318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 28063318 is about 5297.4822321552. The cubic root of 28063318 is about 303.8876186059.

The spelling of 28063318 in words is "twenty-eight million, sixty-three thousand, three hundred eighteen".

Divisors: 1 2 71 107 142 214 1847 3694 7597 15194 131137 197629 262274 395258 14031659 28063318