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12323331320 = 235425972337
BaseRepresentation
bin10110111101000011…
…10001110011111000
31011210211112002112112
423132201301303320
5200214233100240
65354455431452
7614245405436
oct133641616370
934724462475
1012323331320
115254221243
12247b085588
131215141131
1484c945d56
154c1d3c665
hex2de871cf8

12323331320 has 32 divisors (see below), whose sum is σ = 27734389200. Its totient is φ = 4928107008.

The previous prime is 12323331313. The next prime is 12323331323. The reversal of 12323331320 is 2313332321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323331323) 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 7 ways as a sum of consecutive naturals, for example, 134192 + ... + 206528.

Almost surely, 212323331320 is an apocalyptic number.

12323331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12323331320 is an abundant number, since it is smaller than the sum of its proper divisors (15411057880).

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

12323331320 is a wasteful number, since it uses less digits than its factorization.

12323331320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76607 (or 76603 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 12323331320 its reverse (2313332321), we get a palindrome (14636663641).

The spelling of 12323331320 in words is "twelve billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 4259 8518 17036 21295 34072 42590 72337 85180 144674 170360 289348 361685 578696 723370 1446740 2893480 308083283 616166566 1232333132 1540416415 2464666264 3080832830 6161665660 12323331320