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12311044330 = 25132931310433
BaseRepresentation
bin10110111011100101…
…11010000011101010
31011202222101211221211
423131302322003222
5200203111404310
65353340223334
7614036102344
oct133562720352
934688354854
1012311044330
115248299902
122476b3ab4a
13121272b620
1484b068294
154c0c11c8a
hex2ddcba0ea

12311044330 has 64 divisors (see below), whose sum is σ = 24768646560. Its totient is φ = 4374429696.

The previous prime is 12311044327. The next prime is 12311044337. The reversal of 12311044330 is 3344011321.

It can be written as a sum of positive squares in 16 ways, for example, as 239847169 + 12071197161 = 15487^2 + 109869^2 .

It is not an unprimeable number, because it can be changed into a prime (12311044337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174794 + ... + 1185226.

Almost surely, 212311044330 is an apocalyptic number.

12311044330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311044330 is an abundant number, since it is smaller than the sum of its proper divisors (12457602230).

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

12311044330 is a wasteful number, since it uses less digits than its factorization.

12311044330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12311044330 its reverse (3344011321), we get a palindrome (15655055651).

The spelling of 12311044330 in words is "twelve billion, three hundred eleven million, forty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 313 377 626 754 1565 1885 3130 3770 4069 8138 9077 10433 18154 20345 20866 40690 45385 52165 90770 104330 118001 135629 236002 271258 302557 590005 605114 678145 1180010 1356290 1512785 3025570 3265529 3933241 6531058 7866482 16327645 19666205 32655290 39332410 42451877 84903754 94700341 189400682 212259385 424518770 473501705 947003410 1231104433 2462208866 6155522165 12311044330