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12742752330 = 237572112347
BaseRepresentation
bin10111101111000011…
…01111100001001010
31012220001201220000000
423313201233201022
5202044121033310
65504241223430
7630530415300
oct136741574112
935801656000
1012742752330
115449a51480
122577631b76
131280cc2449
1488c524270
154e8a8a4c0
hex2f786f84a

12742752330 has 768 divisors, whose sum is σ = 46521630720. Its totient is φ = 2478833280.

The previous prime is 12742752289. The next prime is 12742752343. The reversal of 12742752330 is 3325724721.

12742752330 is a `hidden beast` number, since 1 + 274 + 2 + 7 + 52 + 330 = 666.

It is a congruent number.

It is an unprimeable number.

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 383 ways as a sum of consecutive naturals, for example, 271122367 + ... + 271122413.

It is an arithmetic number, because the mean of its divisors is an integer number (60575040).

Almost surely, 212742752330 is an apocalyptic number.

12742752330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12742752330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23260815360).

12742752330 is an abundant number, since it is smaller than the sum of its proper divisors (33778878390).

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

12742752330 is a wasteful number, since it uses less digits than its factorization.

12742752330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 12742752330 in words is "twelve billion, seven hundred forty-two million, seven hundred fifty-two thousand, three hundred thirty".