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12388768011 = 322575356147
BaseRepresentation
bin10111000100110110…
…11001100100001011
31011222101122121210200
423202123121210023
5200333011034021
65405154143243
7616001535114
oct134233314413
934871577720
1012388768011
115288155854
122498b81b23
131225872879
148574db20b
154c7966126
hex2e26d990b

12388768011 has 12 divisors (see below), whose sum is σ = 17964520392. Its totient is φ = 8227040256.

The previous prime is 12388768009. The next prime is 12388768027. The reversal of 12388768011 is 11086788321.

It is a happy number.

12388768011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12388768011 - 21 = 12388768009 is a prime.

It is a super-2 number, since 2×123887680112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12388768031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2675761 + ... + 2680386.

It is an arithmetic number, because the mean of its divisors is an integer number (1497043366).

Almost surely, 212388768011 is an apocalyptic number.

12388768011 is a deficient number, since it is larger than the sum of its proper divisors (5575752381).

12388768011 is a wasteful number, since it uses less digits than its factorization.

12388768011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356410 (or 5356407 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 12388768011 in words is "twelve billion, three hundred eighty-eight million, seven hundred sixty-eight thousand, eleven".

Divisors: 1 3 9 257 771 2313 5356147 16068441 48205323 1376529779 4129589337 12388768011