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28875694 = 231895233
BaseRepresentation
bin110111000100…
…1101110101110
32000100001000011
41232021232232
524343010234
62510523434
7500303461
oct156115656
960301004
1028875694
1115332811
12980657a
135ca0313
143b992d8
152805b64
hex1b89bae

28875694 has 16 divisors (see below), whose sum is σ = 45221760. Its totient is φ = 13812480.

The previous prime is 28875683. The next prime is 28875697. The reversal of 28875694 is 49657882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28875697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902 + ... + 8134.

It is an arithmetic number, because the mean of its divisors is an integer number (2826360).

Almost surely, 228875694 is an apocalyptic number.

28875694 is a deficient number, since it is larger than the sum of its proper divisors (16346066).

28875694 is a wasteful number, since it uses less digits than its factorization.

28875694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355.

The product of its digits is 967680, while the sum is 49.

The square root of 28875694 is about 5373.6108902674. The cubic root of 28875694 is about 306.7920798220.

The spelling of 28875694 in words is "twenty-eight million, eight hundred seventy-five thousand, six hundred ninety-four".

Divisors: 1 2 31 62 89 178 2759 5233 5518 10466 162223 324446 465737 931474 14437847 28875694