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28888827 = 311875419
BaseRepresentation
bin110111000110…
…0111011111011
32000100201000120
41232030323323
524343420302
62511104323
7500356662
oct156147373
960321016
1028888827
1115341670
1298120a3
135ca62a6
143b9ddd9
1528099bc
hex1b8cefb

28888827 has 8 divisors (see below), whose sum is σ = 42020160. Its totient is φ = 17508360.

The previous prime is 28888771. The next prime is 28888841. The reversal of 28888827 is 72888882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28888827 - 28 = 28888571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28888827.

It is not an unprimeable number, because it can be changed into a prime (28888877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437677 + ... + 437742.

It is an arithmetic number, because the mean of its divisors is an integer number (5252520).

Almost surely, 228888827 is an apocalyptic number.

28888827 is a deficient number, since it is larger than the sum of its proper divisors (13131333).

28888827 is a wasteful number, since it uses less digits than its factorization.

28888827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875433.

The product of its digits is 917504, while the sum is 51.

The square root of 28888827 is about 5374.8327415837. The cubic root of 28888827 is about 306.8385836360.

The spelling of 28888827 in words is "twenty-eight million, eight hundred eighty-eight thousand, eight hundred twenty-seven".

Divisors: 1 3 11 33 875419 2626257 9629609 28888827