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256324232 = 23172338089
BaseRepresentation
bin11110100011100…
…11001010001000
3122212022121202002
433101303022020
51011104333412
641233530132
76231501653
oct1721631210
9585277662
10256324232
1112176320a
1271a13948
1341148158
142608489a
1517782dc2
hexf473288

256324232 has 32 divisors (see below), whose sum is σ = 511126200. Its totient is φ = 120090624.

The previous prime is 256324223. The next prime is 256324267. The reversal of 256324232 is 232423652.

It can be written as a sum of positive squares in 4 ways, for example, as 139381636 + 116942596 = 11806^2 + 10814^2 .

It is a super-2 number, since 2×2563242322 = 131404223820779648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256324195 and 256324204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27644 + ... + 35732.

Almost surely, 2256324232 is an apocalyptic number.

It is an amenable number.

256324232 is a deficient number, since it is larger than the sum of its proper divisors (254801968).

256324232 is a wasteful number, since it uses less digits than its factorization.

256324232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8345 (or 8341 counting only the distinct ones).

The product of its digits is 17280, while the sum is 29.

The square root of 256324232 is about 16010.1290438272. The cubic root of 256324232 is about 635.2283734341.

Adding to 256324232 its reverse (232423652), we get a palindrome (488747884).

The spelling of 256324232 in words is "two hundred fifty-six million, three hundred twenty-four thousand, two hundred thirty-two".

Divisors: 1 2 4 8 17 34 68 136 233 466 932 1864 3961 7922 8089 15844 16178 31688 32356 64712 137513 275026 550052 1100104 1884737 3769474 7538948 15077896 32040529 64081058 128162116 256324232