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256532332 = 2279161869
BaseRepresentation
bin11110100101001…
…01111101101100
3122212201012012111
433102211331230
51011133013312
641242213404
76233326450
oct1722457554
9585635174
10256532332
111218955a1
1271ab4264
13411bbaa4
14260da660
15177c48a7
hexf4a5f6c

256532332 has 12 divisors (see below), whose sum is σ = 513064720. Its totient is φ = 109942416.

The previous prime is 256532321. The next prime is 256532351. The reversal of 256532332 is 233235652.

256532332 is an admirable number.

It is a super-2 number, since 2×2565323322 = 131617674722716448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256532294 and 256532303.

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, 4580907 + ... + 4580962.

Almost surely, 2256532332 is an apocalyptic number.

It is an amenable number.

256532332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256532332 is a wasteful number, since it uses less digits than its factorization.

256532332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161880 (or 9161878 counting only the distinct ones).

The product of its digits is 32400, while the sum is 31.

The square root of 256532332 is about 16016.6267359891. The cubic root of 256532332 is about 635.4002329392.

Adding to 256532332 its reverse (233235652), we get a palindrome (489767984).

The spelling of 256532332 in words is "two hundred fifty-six million, five hundred thirty-two thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 9161869 18323738 36647476 64133083 128266166 256532332