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12207806286 = 2313156510337
BaseRepresentation
bin10110101111010010…
…00101011101001110
31011111210010210222120
423113221011131032
5200000144300121
65335211353410
7611343432654
oct132751053516
934453123876
1012207806286
1151a4a96605
122448452866
1311c7223020
1483b472dd4
154b6b1cbc6
hex2d7a4574e

12207806286 has 16 divisors (see below), whose sum is σ = 26293736784. Its totient is φ = 3756248064.

The previous prime is 12207806263. The next prime is 12207806287. The reversal of 12207806286 is 68260870221.

It is a happy number.

It is a super-2 number, since 2×122078062862 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12207806287) 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, 78255091 + ... + 78255246.

It is an arithmetic number, because the mean of its divisors is an integer number (1643358549).

Almost surely, 212207806286 is an apocalyptic number.

12207806286 is an abundant number, since it is smaller than the sum of its proper divisors (14085930498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12207806286 is a wasteful number, since it uses less digits than its factorization.

12207806286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156510355.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 12207806286 in words is "twelve billion, two hundred seven million, eight hundred six thousand, two hundred eighty-six".

Divisors: 1 2 3 6 13 26 39 78 156510337 313020674 469531011 939062022 2034634381 4069268762 6103903143 12207806286