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255320312 = 23132455003
BaseRepresentation
bin11110011011111…
…10000011111000
3122210102121121212
433031332003320
51010330222222
641200222252
76220121042
oct1715760370
9583377555
10255320312
11121137a25
127160a988
1340b86210
1425ca2a92
15176356e2
hexf37e0f8

255320312 has 16 divisors (see below), whose sum is σ = 515550840. Its totient is φ = 117840096.

The previous prime is 255320287. The next prime is 255320357. The reversal of 255320312 is 213023552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1227398 + ... + 1227605.

Almost surely, 2255320312 is an apocalyptic number.

It is an amenable number.

255320312 is an abundant number, since it is smaller than the sum of its proper divisors (260230528).

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

255320312 is a wasteful number, since it uses less digits than its factorization.

255320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455022 (or 2455018 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255320312 is about 15978.7456328712. The cubic root of 255320312 is about 634.3979761373.

Adding to 255320312 its reverse (213023552), we get a palindrome (468343864).

The spelling of 255320312 in words is "two hundred fifty-five million, three hundred twenty thousand, three hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 2455003 4910006 9820012 19640024 31915039 63830078 127660156 255320312