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4392287 = 192233
BaseRepresentation
bin10000110000010101011111
322021011002022
4100300111133
52111023122
6234050355
752222334
oct20602537
98234068
104392287
11252aa99
1215799bb
13baa2b3
1482498b
155bb642
hex43055f

4392287 has 12 divisors (see below), whose sum is σ = 4846320. Its totient is φ = 3980196.

The previous prime is 4392281. The next prime is 4392313. The reversal of 4392287 is 7822934.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 4392287 - 210 = 4391263 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 4 + 311 + 9 + 214 + 222 + 84 + 73 .

It is a Duffinian number.

Its product of digits (24192) is a multiple of the sum of its prime divisors (42).

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4392281) 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 11 ways as a sum of consecutive naturals, for example, 190958 + ... + 190980.

It is an arithmetic number, because the mean of its divisors is an integer number (403860).

Almost surely, 24392287 is an apocalyptic number.

4392287 is a deficient number, since it is larger than the sum of its proper divisors (454033).

4392287 is an frugal number, since it uses more digits than its factorization.

4392287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 42 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 4392287 is about 2095.7783756877. The cubic root of 4392287 is about 163.7684492547.

The spelling of 4392287 in words is "four million, three hundred ninety-two thousand, two hundred eighty-seven".

Divisors: 1 19 23 361 437 529 8303 10051 12167 190969 231173 4392287