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256482 = 23214249
BaseRepresentation
bin111110100111100010
3111000211100
4332213202
531201412
65255230
72115522
oct764742
9430740
10256482
11165776
12104516
138c985
1469682
1550edc
hex3e9e2

256482 has 12 divisors (see below), whose sum is σ = 555750. Its totient is φ = 85488.

The previous prime is 256471. The next prime is 256483. The reversal of 256482 is 284652.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 62001 = 441^2 + 249^2 .

It is not an unprimeable number, because it can be changed into a prime (256483) 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 5 ways as a sum of consecutive naturals, for example, 7107 + ... + 7142.

2256482 is an apocalyptic number.

256482 is an abundant number, since it is smaller than the sum of its proper divisors (299268).

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

256482 is a wasteful number, since it uses less digits than its factorization.

256482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257 (or 14254 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 256482 is about 506.4405197059. The cubic root of 256482 is about 63.5358674752.

The spelling of 256482 in words is "two hundred fifty-six thousand, four hundred eighty-two".

Divisors: 1 2 3 6 9 18 14249 28498 42747 85494 128241 256482