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3121122453132 = 22319111931141447
BaseRepresentation
bin101101011010110001011…
…001010010011010001100
3102001101011101112102011210
4231122301121102122030
5402114024322000012
610345453542014420
7441331216056435
oct55326131223214
912041141472153
103121122453132
11aa372a291512
12424a89717410
13198422429b08
14ab0c534448c
15562c301823c
hex2d6b165268c

3121122453132 has 48 divisors (see below), whose sum is σ = 7326890790912. Its totient is φ = 1034058760320.

The previous prime is 3121122453131. The next prime is 3121122453149. The reversal of 3121122453132 is 2313542211213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121122453132.

It is not an unprimeable number, because it can be changed into a prime (3121122453131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163633 + ... + 3305079.

It is an arithmetic number, because the mean of its divisors is an integer number (152643558144).

Almost surely, 23121122453132 is an apocalyptic number.

It is an amenable number.

3121122453132 is an abundant number, since it is smaller than the sum of its proper divisors (4205768337780).

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

3121122453132 is a wasteful number, since it uses less digits than its factorization.

3121122453132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142838 (or 1142836 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

Adding to 3121122453132 its reverse (2313542211213), we get a palindrome (5434664664345).

The spelling of 3121122453132 in words is "three trillion, one hundred twenty-one billion, one hundred twenty-two million, four hundred fifty-three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 191 382 573 764 1146 1193 2292 2386 3579 4772 7158 14316 227863 455726 683589 911452 1141447 1367178 2282894 2734356 3424341 4565788 6848682 13697364 218016377 436032754 654049131 872065508 1308098262 1361746271 2616196524 2723492542 4085238813 5446985084 8170477626 16340955252 260093537761 520187075522 780280613283 1040374151044 1560561226566 3121122453132