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256295 = 5133943
BaseRepresentation
bin111110100100100111
3111000120102
4332210213
531200140
65254315
72115134
oct764447
9430512
10256295
11165616
1210439b
138c870
146958b
1550e15
hex3e927

256295 has 8 divisors (see below), whose sum is σ = 331296. Its totient is φ = 189216.

The previous prime is 256279. The next prime is 256301. The reversal of 256295 is 592652.

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

It is a cyclic number.

It is not a de Polignac number, because 256295 - 24 = 256279 is a prime.

It is a d-powerful number, because it can be written as 213 + 57 + 215 + 62 + 95 + 57 .

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1907 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (41412).

2256295 is an apocalyptic number.

256295 is a deficient number, since it is larger than the sum of its proper divisors (75001).

256295 is a wasteful number, since it uses less digits than its factorization.

256295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961.

The product of its digits is 5400, while the sum is 29.

The square root of 256295 is about 506.2558641636. The cubic root of 256295 is about 63.5204224720.

The spelling of 256295 in words is "two hundred fifty-six thousand, two hundred ninety-five".

Divisors: 1 5 13 65 3943 19715 51259 256295