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28054808 = 2353127521
BaseRepresentation
bin110101100000…
…1010100011000
31221210022221222
41223001110120
524140223213
62441151212
7460314305
oct153012430
957708858
1028054808
1114921aa1
12948b508
135a737a2
143a240ac
1526e2808
hex1ac1518

28054808 has 32 divisors (see below), whose sum is σ = 54120960. Its totient is φ = 13628160.

The previous prime is 28054781. The next prime is 28054813. The reversal of 28054808 is 80845082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53588 + ... + 54108.

It is an arithmetic number, because the mean of its divisors is an integer number (1691280).

Almost surely, 228054808 is an apocalyptic number.

It is an amenable number.

28054808 is a deficient number, since it is larger than the sum of its proper divisors (26066152).

28054808 is a wasteful number, since it uses less digits than its factorization.

28054808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 28054808 is about 5296.6789594991. The cubic root of 28054808 is about 303.8568982532.

The spelling of 28054808 in words is "twenty-eight million, fifty-four thousand, eight hundred eight".

Divisors: 1 2 4 8 53 106 127 212 254 424 508 521 1016 1042 2084 4168 6731 13462 26924 27613 53848 55226 66167 110452 132334 220904 264668 529336 3506851 7013702 14027404 28054808