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13312213212 = 2237914042419
BaseRepresentation
bin11000110010111100…
…00100000011011100
31021100202021111110210
430121132010003130
5204230411310322
610040542532420
7650613642144
oct143136040334
937322244423
1013312213212
115711440901
1226b6297110
131341c8784c
14903ddb924
1552da7470c
hex3197840dc

13312213212 has 24 divisors (see below), whose sum is σ = 31455020800. Its totient is φ = 4381234416.

The previous prime is 13312213199. The next prime is 13312213241. The reversal of 13312213212 is 21231221331.

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 7 ways as a sum of consecutive naturals, for example, 7020262 + ... + 7022157.

Almost surely, 213312213212 is an apocalyptic number.

13312213212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13312213212 is an abundant number, since it is smaller than the sum of its proper divisors (18142807588).

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

13312213212 is a wasteful number, since it uses less digits than its factorization.

13312213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14042505 (or 14042503 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13312213212 its reverse (21231221331), we get a palindrome (34543434543).

The spelling of 13312213212 in words is "thirteen billion, three hundred twelve million, two hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 948 14042419 28084838 42127257 56169676 84254514 168509028 1109351101 2218702202 3328053303 4437404404 6656106606 13312213212