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12433232305 = 513191280497
BaseRepresentation
bin10111001010001010…
…00001000110110001
31012002111022122100101
423211011001012301
5200430401413210
65413423152401
7620051505454
oct134505010661
935074278311
1012433232305
1153002654aa
1224aba45701
131231b403c0
1485d39349b
154cb7eaa3a
hex2e51411b1

12433232305 has 8 divisors (see below), whose sum is σ = 16067561832. Its totient is φ = 9181463808.

The previous prime is 12433232303. The next prime is 12433232311. The reversal of 12433232305 is 50323233421.

It can be written as a sum of positive squares in 4 ways, for example, as 274200481 + 12159031824 = 16559^2 + 110268^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12433232305 - 21 = 12433232303 is a prime.

It is a super-2 number, since 2×124332323052 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12433232303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95640184 + ... + 95640313.

It is an arithmetic number, because the mean of its divisors is an integer number (2008445229).

Almost surely, 212433232305 is an apocalyptic number.

It is an amenable number.

12433232305 is a deficient number, since it is larger than the sum of its proper divisors (3634329527).

12433232305 is a wasteful number, since it uses less digits than its factorization.

12433232305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191280515.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 12433232305 its reverse (50323233421), we get a palindrome (62756465726).

The spelling of 12433232305 in words is "twelve billion, four hundred thirty-three million, two hundred thirty-two thousand, three hundred five".

Divisors: 1 5 13 65 191280497 956402485 2486646461 12433232305