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12200310342 = 2331120539243
BaseRepresentation
bin10110101110011000…
…11111011001000110
31011111021000222111000
423113030133121012
5144441234412332
65334342554130
7611222632623
oct132714373106
934437028430
1012200310342
1151a0836810
122445a38946
1311c57ca15c
1483a48134a
154b613bb7c
hex2d731f646

12200310342 has 32 divisors (see below), whose sum is σ = 29576511360. Its totient is φ = 3697063560.

The previous prime is 12200310341. The next prime is 12200310359. The reversal of 12200310342 is 24301300221.

12200310342 is a `hidden beast` number, since 12 + 2 + 0 + 0 + 310 + 342 = 666.

It is a super-2 number, since 2×122003103422 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200310341) 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 15 ways as a sum of consecutive naturals, for example, 10269028 + ... + 10270215.

It is an arithmetic number, because the mean of its divisors is an integer number (924265980).

Almost surely, 212200310342 is an apocalyptic number.

12200310342 is an abundant number, since it is smaller than the sum of its proper divisors (17376201018).

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

12200310342 is a wasteful number, since it uses less digits than its factorization.

12200310342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539265 (or 20539259 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12200310342 its reverse (24301300221), we get a palindrome (36501610563).

The spelling of 12200310342 in words is "twelve billion, two hundred million, three hundred ten thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 20539243 41078486 61617729 123235458 184853187 225931673 369706374 451863346 554559561 677795019 1109119122 1355590038 2033385057 4066770114 6100155171 12200310342