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12712064771 = 72659682967
BaseRepresentation
bin10111101011011001…
…01011011100000011
31012210220222210120202
423311230223130003
5202013242033041
65501223355415
7630005524220
oct136554533403
935726883522
1012712064771
1154336a145a
1225692b2b6b
131277839523
14888416947
154e6027a9b
hex2f5b2b703

12712064771 has 8 divisors (see below), whose sum is σ = 14533559040. Its totient is φ = 10891941768.

The previous prime is 12712064767. The next prime is 12712064773. The reversal of 12712064771 is 17746021721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12712064771 - 22 = 12712064767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12712064773) 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 7 ways as a sum of consecutive naturals, for example, 322871 + ... + 360096.

It is an arithmetic number, because the mean of its divisors is an integer number (1816694880).

Almost surely, 212712064771 is an apocalyptic number.

12712064771 is a deficient number, since it is larger than the sum of its proper divisors (1821494269).

12712064771 is an equidigital number, since it uses as much as digits as its factorization.

12712064771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685633.

The product of its (nonzero) digits is 32928, while the sum is 38.

The spelling of 12712064771 in words is "twelve billion, seven hundred twelve million, sixty-four thousand, seven hundred seventy-one".

Divisors: 1 7 2659 18613 682967 4780769 1816009253 12712064771