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28895270 = 257433889
BaseRepresentation
bin110111000111…
…0100000100110
32000101000212012
41232032200212
524344122040
62511154222
7500414525
oct156164046
960330765
1028895270
1115346498
129815972
135ca91c1
143ba24bc
15280b865
hex1b8e826

28895270 has 16 divisors (see below), whose sum is σ = 52094880. Its totient is φ = 11539584.

The previous prime is 28895267. The next prime is 28895297. The reversal of 28895270 is 7259882.

It is a happy number.

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, 5486 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (3255930).

Almost surely, 228895270 is an apocalyptic number.

28895270 is a deficient number, since it is larger than the sum of its proper divisors (23199610).

28895270 is a wasteful number, since it uses less digits than its factorization.

28895270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 28895270 is about 5375.4320756568. The cubic root of 28895270 is about 306.8613930776.

The spelling of 28895270 in words is "twenty-eight million, eight hundred ninety-five thousand, two hundred seventy".

Divisors: 1 2 5 10 743 1486 3715 3889 7430 7778 19445 38890 2889527 5779054 14447635 28895270