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28460488 = 237508223
BaseRepresentation
bin110110010010…
…0010111001000
31222112221110011
41230210113020
524241213423
62454001304
7463624120
oct154442710
958487404
1028460488
1115079871
129646234
135b86334
143acbc80
152772b0d
hex1b245c8

28460488 has 16 divisors (see below), whose sum is σ = 60986880. Its totient is φ = 12197328.

The previous prime is 28460477. The next prime is 28460491. The reversal of 28460488 is 88406482.

28460488 = T232 + T233 + ... + T567.

It is a self number, because there is not a number n which added to its sum of digits gives 28460488.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254056 + ... + 254167.

It is an arithmetic number, because the mean of its divisors is an integer number (3811680).

Almost surely, 228460488 is an apocalyptic number.

28460488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28460488 is an abundant number, since it is smaller than the sum of its proper divisors (32526392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28460488 is a wasteful number, since it uses less digits than its factorization.

28460488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508236 (or 508232 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 28460488 is about 5334.8372046390. The cubic root of 28460488 is about 305.3145120812.

The spelling of 28460488 in words is "twenty-eight million, four hundred sixty thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 508223 1016446 2032892 3557561 4065784 7115122 14230244 28460488