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12420010323 = 327478741183
BaseRepresentation
bin10111001000100101…
…00101000101010011
31012001120102220012100
423210102211011103
5200414010312243
65412231531443
7616531226430
oct134422450523
935046386170
1012420010323
1152a3854646
1224a7529b83
13122c191146
1485b710b87
154ca5880d3
hex2e44a5153

12420010323 has 24 divisors (see below), whose sum is σ = 20507655168. Its totient is φ = 7095493872.

The previous prime is 12420010319. The next prime is 12420010367. The reversal of 12420010323 is 32301002421.

It is not a de Polignac number, because 12420010323 - 22 = 12420010319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12420010296 and 12420010305.

It is not an unprimeable number, because it can be changed into a prime (12420010313) 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, 280990 + ... + 322172.

It is an arithmetic number, because the mean of its divisors is an integer number (854485632).

Almost surely, 212420010323 is an apocalyptic number.

12420010323 is a deficient number, since it is larger than the sum of its proper divisors (8087644845).

12420010323 is a wasteful number, since it uses less digits than its factorization.

12420010323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45983 (or 45980 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12420010323 its reverse (32301002421), we get a palindrome (44721012744).

The spelling of 12420010323 in words is "twelve billion, four hundred twenty million, ten thousand, three hundred twenty-three".

Divisors: 1 3 7 9 21 63 4787 14361 33509 41183 43083 100527 123549 288281 301581 370647 864843 2594529 197143021 591429063 1380001147 1774287189 4140003441 12420010323