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512230732 = 2213311971613
BaseRepresentation
bin11110100010000…
…000010101001100
31022200212000110121
4132202000111030
52022112340412
6122454514324
715456614026
oct3642002514
91280760417
10512230732
11243160592
121236659a4
1382178110
144c05b016
152ee82107
hex1e88054c

512230732 has 48 divisors (see below), whose sum is σ = 1002177792. Its totient is φ = 227485440.

The previous prime is 512230729. The next prime is 512230739. The reversal of 512230732 is 237032215.

It is a junction number, because it is equal to n+sod(n) for n = 512230697 and 512230706.

It is not an unprimeable number, because it can be changed into a prime (512230739) 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 15 ways as a sum of consecutive naturals, for example, 316758 + ... + 318370.

It is an arithmetic number, because the mean of its divisors is an integer number (20878704).

Almost surely, 2512230732 is an apocalyptic number.

512230732 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

512230732 is a deficient number, since it is larger than the sum of its proper divisors (489947060).

512230732 is a wasteful number, since it uses less digits than its factorization.

512230732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 512230732 is about 22632.5149287480. The cubic root of 512230732 is about 800.1201548693.

Adding to 512230732 its reverse (237032215), we get a palindrome (749262947).

The spelling of 512230732 in words is "five hundred twelve million, two hundred thirty thousand, seven hundred thirty-two".

Divisors: 1 2 4 13 26 31 52 62 124 197 394 403 788 806 1612 1613 2561 3226 5122 6107 6452 10244 12214 20969 24428 41938 50003 79391 83876 100006 158782 200012 317564 317761 635522 650039 1271044 1300078 2600156 4130893 8261786 9850591 16523572 19701182 39402364 128057683 256115366 512230732