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27872828 = 2229240283
BaseRepresentation
bin110101001010…
…0111000111100
31221110002022222
41222110320330
524113412303
62433224512
7455625614
oct152247074
957402288
1027872828
11148082a5
129402138
135a0b9c9
1439b7a44
1526a8938
hex1a94e3c

27872828 has 12 divisors (see below), whose sum is σ = 50459640. Its totient is φ = 13455792.

The previous prime is 27872807. The next prime is 27872851. The reversal of 27872828 is 82827872.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 120026 + ... + 120257.

It is an arithmetic number, because the mean of its divisors is an integer number (4204970).

Almost surely, 227872828 is an apocalyptic number.

It is an amenable number.

27872828 is a deficient number, since it is larger than the sum of its proper divisors (22586812).

27872828 is a wasteful number, since it uses less digits than its factorization.

27872828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240316 (or 240314 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 27872828 is about 5279.4723221171. The cubic root of 27872828 is about 303.1984743137.

The spelling of 27872828 in words is "twenty-seven million, eight hundred seventy-two thousand, eight hundred twenty-eight".

Divisors: 1 2 4 29 58 116 240283 480566 961132 6968207 13936414 27872828