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231042043214212 = 22320360659297289
BaseRepresentation
bin110100100010000110101010…
…111010011111100110000100
31010022001101220020110211000111
4310202012222322133212010
5220240343101030323322
62135215125511122404
766444144133131436
oct6442065272374604
91108041806424014
10231042043214212
116768742016041a
1221ab55b4973404
139bbc22c1440b9
14410a6cd0cc656
151ba9e01663177
hexd221aae9f984

231042043214212 has 24 divisors (see below), whose sum is σ = 404457836479200. Its totient is φ = 115482662807616.

The previous prime is 231042043214159. The next prime is 231042043214231. The reversal of 231042043214212 is 212412340240132.

It is a super-4 number, since 4×2310420432142124 (a number of 59 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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, 777014464 + ... + 777311752.

It is an arithmetic number, because the mean of its divisors is an integer number (16852409853300).

Almost surely, 2231042043214212 is an apocalyptic number.

It is an amenable number.

231042043214212 is a deficient number, since it is larger than the sum of its proper divisors (173415793264988).

231042043214212 is a wasteful number, since it uses less digits than its factorization.

231042043214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361155 (or 361153 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 231042043214212 its reverse (212412340240132), we get a palindrome (443454383454344).

The spelling of 231042043214212 in words is "two hundred thirty-one trillion, forty-two billion, forty-three million, two hundred fourteen thousand, two hundred twelve".

Divisors: 1 2 4 3203 6406 12812 60659 121318 242636 297289 594578 1189156 194290777 388581554 777163108 952216667 1904433334 3808866668 18033253451 36066506902 72133013804 57760510803553 115521021607106 231042043214212