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28054248 = 2331168927
BaseRepresentation
bin110101100000…
…1001011101000
31221210022012020
41223001023220
524140213443
62441144440
7460312545
oct153011350
957708166
1028054248
1114921632
12948b120
135a73461
143a23bcc
1526e2583
hex1ac12e8

28054248 has 16 divisors (see below), whose sum is σ = 70135680. Its totient is φ = 9351408.

The previous prime is 28054211. The next prime is 28054259. The reversal of 28054248 is 84245082.

It is a happy number.

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, 584440 + ... + 584487.

It is an arithmetic number, because the mean of its divisors is an integer number (4383480).

Almost surely, 228054248 is an apocalyptic number.

It is an amenable number.

28054248 is an abundant number, since it is smaller than the sum of its proper divisors (42081432).

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

28054248 is a wasteful number, since it uses less digits than its factorization.

28054248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168936 (or 1168932 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 28054248 is about 5296.6260959218. The cubic root of 28054248 is about 303.8548764845.

The spelling of 28054248 in words is "twenty-eight million, fifty-four thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 1168927 2337854 3506781 4675708 7013562 9351416 14027124 28054248