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12013206485 = 571743469541
BaseRepresentation
bin10110011000000101…
…01111101111010101
31011000012222010020112
423030002233233111
5144100340101420
65304020412405
7603461366420
oct131402575725
934005863215
1012013206485
115105161925
1223b3247105
131195b09a07
1481d6989b7
154a49cd8c5
hex2cc0afbd5

12013206485 has 32 divisors (see below), whose sum is σ = 17850108672. Its totient is φ = 7572741120.

The previous prime is 12013206481. The next prime is 12013206511. The reversal of 12013206485 is 58460231021.

It is not a de Polignac number, because 12013206485 - 22 = 12013206481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013206481) 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 31 ways as a sum of consecutive naturals, for example, 209186 + ... + 260355.

It is an arithmetic number, because the mean of its divisors is an integer number (557815896).

Almost surely, 212013206485 is an apocalyptic number.

It is an amenable number.

12013206485 is a deficient number, since it is larger than the sum of its proper divisors (5836902187).

12013206485 is a wasteful number, since it uses less digits than its factorization.

12013206485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469613.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 12013206485 in words is "twelve billion, thirteen million, two hundred six thousand, four hundred eighty-five".

Divisors: 1 5 7 17 35 43 85 119 215 301 595 731 1505 3655 5117 25585 469541 2347705 3286787 7982197 16433935 20190263 39910985 55875379 100951315 141331841 279376895 343234471 706659205 1716172355 2402641297 12013206485