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12312042230 = 258431146033
BaseRepresentation
bin10110111011101101…
…01101101011110110
31011210001021112211002
423131312231223312
5200203340322410
65353413443302
7614050426565
oct133566555366
934701245732
1012312042230
115248910614
122477340532
1312129ba8b7
1484b247bdc
154c0d5c7a5
hex2dddadaf6

12312042230 has 16 divisors (see below), whose sum is σ = 22164456384. Its totient is φ = 4924199040.

The previous prime is 12312042227. The next prime is 12312042247. The reversal of 12312042230 is 3224021321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11294 + ... + 157326.

It is an arithmetic number, because the mean of its divisors is an integer number (1385278524).

Almost surely, 212312042230 is an apocalyptic number.

12312042230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312042230 is a deficient number, since it is larger than the sum of its proper divisors (9852414154).

12312042230 is a wasteful number, since it uses less digits than its factorization.

12312042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154471.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12312042230 its reverse (3224021321), we get a palindrome (15536063551).

The spelling of 12312042230 in words is "twelve billion, three hundred twelve million, forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 8431 16862 42155 84310 146033 292066 730165 1460330 1231204223 2462408446 6156021115 12312042230