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13421244312 = 2332729918257
BaseRepresentation
bin11000111111111011…
…11110111110011000
31021122100102212000200
430133331332332120
5204441314304222
610055435502200
7653406460110
oct143775767630
937570385020
1013421244312
115767a40553
1227268b7960
13135b740ba8
149146a0040
1553840eeac
hex31ff7ef98

13421244312 has 96 divisors (see below), whose sum is σ = 42974474400. Its totient is φ = 3702408192.

The previous prime is 13421244299. The next prime is 13421244359. The reversal of 13421244312 is 21344212431.

13421244312 is a `hidden beast` number, since 1 + 3 + 4 + 212 + 443 + 1 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444513 + ... + 473744.

It is an arithmetic number, because the mean of its divisors is an integer number (447650775).

Almost surely, 213421244312 is an apocalyptic number.

13421244312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13421244312 is an abundant number, since it is smaller than the sum of its proper divisors (29553230088).

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

13421244312 is a wasteful number, since it uses less digits than its factorization.

13421244312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918305 (or 918298 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 13421244312 its reverse (21344212431), we get a palindrome (34765456743).

The spelling of 13421244312 in words is "thirteen billion, four hundred twenty-one million, two hundred forty-four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 29 36 42 56 58 63 72 84 87 116 126 168 174 203 232 252 261 348 406 504 522 609 696 812 1044 1218 1624 1827 2088 2436 3654 4872 7308 14616 918257 1836514 2754771 3673028 5509542 6427799 7346056 8264313 11019084 12855598 16528626 19283397 22038168 25711196 26629453 33057252 38566794 51422392 53258906 57850191 66114504 77133588 79888359 106517812 115700382 154267176 159776718 186406171 213035624 231400764 239665077 319553436 372812342 462801528 479330154 559218513 639106872 745624684 958660308 1118437026 1491249368 1677655539 1917320616 2236874052 3355311078 4473748104 6710622156 13421244312