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13122334123212 = 2231499729504899
BaseRepresentation
bin1011111011110100100000…
…0100000110010011001100
31201110111001000201212212210
42332331020010012103030
53204444020013420322
643524152253230420
72523025446445626
oct276751004062314
951414030655783
1013122334123212
1141aa172572166
12157b243192410
1374257a604582
143351a535dc16
1517b51e4ee70c
hexbef481064cc

13122334123212 has 24 divisors (see below), whose sum is σ = 30639205800000. Its totient is φ = 4371193348816.

The previous prime is 13122334123187. The next prime is 13122334123231. The reversal of 13122334123212 is 21232143322131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13122334123212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364734462 + ... + 364770437.

It is an arithmetic number, because the mean of its divisors is an integer number (1276633575000).

Almost surely, 213122334123212 is an apocalyptic number.

13122334123212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13122334123212 is an abundant number, since it is smaller than the sum of its proper divisors (17516871676788).

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

13122334123212 is a wasteful number, since it uses less digits than its factorization.

13122334123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729506405 (or 729506403 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

Adding to 13122334123212 its reverse (21232143322131), we get a palindrome (34354477445343).

The spelling of 13122334123212 in words is "thirteen trillion, one hundred twenty-two billion, three hundred thirty-four million, one hundred twenty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1499 2998 4497 5996 8994 17988 729504899 1459009798 2188514697 2918019596 4377029394 8754058788 1093527843601 2187055687202 3280583530803 4374111374404 6561167061606 13122334123212