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212012502450013 = 19234371158910733
BaseRepresentation
bin110000001101001100000001…
…111001010111111101011101
31000210200012022211021102120001
4300031030001321113331131
5210242103101111400023
62030525110554254301
762441253311363566
oct6015140171277535
91023605284242501
10212012502450013
116160aaa7529971
121b94153a127391
13913b901c45585
143a4d661c5316d
151979de98ce6ad
hexc0d301e57f5d

212012502450013 has 32 divisors (see below), whose sum is σ = 241646018549760. Its totient is φ = 185010230623680.

The previous prime is 212012502449983. The next prime is 212012502450041. The reversal of 212012502450013 is 310054205210212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212012502450013 - 217 = 212012502318941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012502430013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78121206 + ... + 80789527.

It is an arithmetic number, because the mean of its divisors is an integer number (7551438079680).

Almost surely, 2212012502450013 is an apocalyptic number.

212012502450013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212012502450013 is a deficient number, since it is larger than the sum of its proper divisors (29633516099747).

212012502450013 is a wasteful number, since it uses less digits than its factorization.

212012502450013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158910889.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 212012502450013 its reverse (310054205210212), we get a palindrome (522066707660225).

The spelling of 212012502450013 in words is "two hundred twelve trillion, twelve billion, five hundred two million, four hundred fifty thousand, thirteen".

Divisors: 1 19 23 43 71 437 817 989 1349 1633 3053 18791 31027 58007 70219 1334161 158910733 3019303927 3654946859 6833161519 11282662043 69443990321 129830068861 157162714937 214370578817 259501226989 485154467849 2986091583803 4930523312791 9217934889131 11158552760527 212012502450013