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28063267 = 31389659
BaseRepresentation
bin110101100001…
…1011000100011
31221210202120021
41223003120203
524141011032
62441254311
7460351051
oct153033043
957722507
1028063267
1114928391
129494397
135a775ab
143a271d1
1526e5097
hex1ac3623

28063267 has 4 divisors (see below), whose sum is σ = 28153240. Its totient is φ = 27973296.

The previous prime is 28063237. The next prime is 28063283. The reversal of 28063267 is 76236082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28063267 - 223 = 19674659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28063207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44517 + ... + 45142.

It is an arithmetic number, because the mean of its divisors is an integer number (7038310).

Almost surely, 228063267 is an apocalyptic number.

28063267 is the 3059-th hex number.

28063267 is a deficient number, since it is larger than the sum of its proper divisors (89973).

28063267 is an equidigital number, since it uses as much as digits as its factorization.

28063267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89972.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 28063267 is about 5297.4774185455. The cubic root of 28063267 is about 303.8874345189.

The spelling of 28063267 in words is "twenty-eight million, sixty-three thousand, two hundred sixty-seven".

Divisors: 1 313 89659 28063267