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12068945779 = 1117233737523
BaseRepresentation
bin10110011110101110…
…10111111101110011
31011011002211222011211
423033113113331303
5144204122231104
65313331220551
7605036226562
oct131727277563
934132758154
1012068945779
115133672660
122409a47757
1311a4524547
14826c47bd9
154a983de04
hex2cf5d7f73

12068945779 has 32 divisors (see below), whose sum is σ = 14587651584. Its totient is φ = 9849607680.

The previous prime is 12068945731. The next prime is 12068945783. The reversal of 12068945779 is 97754986021.

It is not a de Polignac number, because 12068945779 - 217 = 12068814707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12068945719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1600512 + ... + 1608034.

It is an arithmetic number, because the mean of its divisors is an integer number (455864112).

Almost surely, 212068945779 is an apocalyptic number.

12068945779 is a deficient number, since it is larger than the sum of its proper divisors (2518705805).

12068945779 is a wasteful number, since it uses less digits than its factorization.

12068945779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 12068945779 in words is "twelve billion, sixty-eight million, nine hundred forty-five thousand, seven hundred seventy-nine".

Divisors: 1 11 17 23 187 253 373 391 4103 4301 6341 7523 8579 69751 82753 94369 127891 145843 173029 1406801 1604273 1903319 2806079 2941493 30866869 32356423 47703343 64539817 524736773 709937987 1097176889 12068945779