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12673744308 = 2232352048453
BaseRepresentation
bin10111100110110100…
…11111110110110100
31012201020212220210100
423303122133312310
5201423434304213
65453334154100
7626032022601
oct136332376664
935636786710
1012673744308
115413aa8755
1225584b2930
13126c9102b4
148832bd6a8
154e29a8773
hex2f369fdb4

12673744308 has 18 divisors (see below), whose sum is σ = 32036409314. Its totient is φ = 4224581424.

The previous prime is 12673744289. The next prime is 12673744309. The reversal of 12673744308 is 80344737621.

It can be written as a sum of positive squares in only one way, i.e., 11333305764 + 1340438544 = 106458^2 + 36612^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12673744309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176024191 + ... + 176024262.

Almost surely, 212673744308 is an apocalyptic number.

12673744308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12673744308 is an abundant number, since it is smaller than the sum of its proper divisors (19362665006).

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

12673744308 is a wasteful number, since it uses less digits than its factorization.

12673744308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352048463 (or 352048458 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 12673744308 in words is "twelve billion, six hundred seventy-three million, seven hundred forty-four thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 352048453 704096906 1056145359 1408193812 2112290718 3168436077 4224581436 6336872154 12673744308