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12755375385 = 351801472159
BaseRepresentation
bin10111110000100011…
…11001010100011001
31012220221111012120120
423320101321110121
5202110334003020
65505411543453
7631042621224
oct137021712431
935827435516
1012755375385
115456093355
12257b8bab89
1312837c1bcc
1489008c5bb
154e9c30740
hex2f8479519

12755375385 has 16 divisors (see below), whose sum is σ = 20419975680. Its totient is φ = 6799075200.

The previous prime is 12755375333. The next prime is 12755375407. The reversal of 12755375385 is 58357355721.

12755375385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-12755375385 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 209065 + ... + 263094.

It is an arithmetic number, because the mean of its divisors is an integer number (1276248480).

Almost surely, 212755375385 is an apocalyptic number.

12755375385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12755375385 is a deficient number, since it is larger than the sum of its proper divisors (7664600295).

12755375385 is a wasteful number, since it uses less digits than its factorization.

12755375385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473968.

The product of its digits is 4410000, while the sum is 51.

The spelling of 12755375385 in words is "twelve billion, seven hundred fifty-five million, three hundred seventy-five thousand, three hundred eighty-five".

Divisors: 1 3 5 15 1801 5403 9005 27015 472159 1416477 2360795 7082385 850358359 2551075077 4251791795 12755375385