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12968145783 = 3210114266387
BaseRepresentation
bin11000001001111011…
…00011001101110111
31020110202212001200200
430010331203031313
5203024321131113
65542452211543
7636235264125
oct140475431567
936422761620
1012968145783
1155551a895a
12261b009bb3
1312b88caa58
148b0436915
1550d75d873
hex304f63377

12968145783 has 12 divisors (see below), whose sum is σ = 18917230488. Its totient is φ = 8559831600.

The previous prime is 12968145781. The next prime is 12968145787. The reversal of 12968145783 is 38754186921.

12968145783 is a `hidden beast` number, since 1 + 2 + 9 + 68 + 1 + 4 + 578 + 3 = 666.

It is not a de Polignac number, because 12968145783 - 21 = 12968145781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12968145781) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7132285 + ... + 7134102.

It is an arithmetic number, because the mean of its divisors is an integer number (1576435874).

Almost surely, 212968145783 is an apocalyptic number.

12968145783 is a deficient number, since it is larger than the sum of its proper divisors (5949084705).

12968145783 is a wasteful number, since it uses less digits than its factorization.

12968145783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266494 (or 14266491 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The spelling of 12968145783 in words is "twelve billion, nine hundred sixty-eight million, one hundred forty-five thousand, seven hundred eighty-three".

Divisors: 1 3 9 101 303 909 14266387 42799161 128397483 1440905087 4322715261 12968145783