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28460678 = 270920071
BaseRepresentation
bin110110010010…
…0011010000110
31222112221201012
41230210122012
524241220203
62454002222
7463624511
oct154443206
958487635
1028460678
1115079a24
129646372
135b8644c
143acbd78
152772bd8
hex1b24686

28460678 has 8 divisors (see below), whose sum is σ = 42753360. Its totient is φ = 14209560.

The previous prime is 28460671. The next prime is 28460681. The reversal of 28460678 is 87606482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28460671) by changing a digit.

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, 8618 + ... + 11453.

It is an arithmetic number, because the mean of its divisors is an integer number (5344170).

Almost surely, 228460678 is an apocalyptic number.

28460678 is a deficient number, since it is larger than the sum of its proper divisors (14292682).

28460678 is a wasteful number, since it uses less digits than its factorization.

28460678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20782.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 28460678 is about 5334.8550120880. The cubic root of 28460678 is about 305.3151914983.

The spelling of 28460678 in words is "twenty-eight million, four hundred sixty thousand, six hundred seventy-eight".

Divisors: 1 2 709 1418 20071 40142 14230339 28460678