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12312210302 = 2721074872411
BaseRepresentation
bin10110111011101110…
…10110101101111110
31011210001121002100222
423131313112231332
5200203411212202
65353421221342
7614052026600
oct133567265576
934701532328
1012312210302
115248a15917
122477401852
131212a49252
1484b28d170
154c0d924a2
hex2dddd6b7e

12312210302 has 48 divisors (see below), whose sum is σ = 21737870208. Its totient is φ = 5214449520.

The previous prime is 12312210259. The next prime is 12312210307. The reversal of 12312210302 is 20301221321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312210307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5105477 + ... + 5107887.

It is an arithmetic number, because the mean of its divisors is an integer number (452872296).

Almost surely, 212312210302 is an apocalyptic number.

12312210302 is a deficient number, since it is larger than the sum of its proper divisors (9425659906).

12312210302 is a wasteful number, since it uses less digits than its factorization.

12312210302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12312210302 its reverse (20301221321), we get a palindrome (32613431623).

The spelling of 12312210302 in words is "twelve billion, three hundred twelve million, two hundred ten thousand, three hundred two".

Divisors: 1 2 7 14 49 98 107 214 487 749 974 1498 2411 3409 4822 5243 6818 10486 16877 23863 33754 47726 52109 104218 118139 236278 257977 364763 515954 729526 1174157 1805839 2348314 2553341 3611678 5106682 8219099 12640873 16438198 25281746 57533693 115067386 125634799 251269598 879443593 1758887186 6156105151 12312210302