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12212431413 = 371373612797
BaseRepresentation
bin10110101111110101…
…01110101000110101
31011112002211210110120
423113322232220311
5200002340301123
65335454442153
7611430645210
oct132772565065
934462753416
1012212431413
1151a7665526
122449b03359
1311c81822a0
1483bd18777
154b72332e3
hex2d7eaea35

12212431413 has 32 divisors (see below), whose sum is σ = 20315479296. Its totient is φ = 6353468928.

The previous prime is 12212431409. The next prime is 12212431433. The reversal of 12212431413 is 31413421221.

It is not a de Polignac number, because 12212431413 - 22 = 12212431409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212431433) 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, 286470 + ... + 326327.

It is an arithmetic number, because the mean of its divisors is an integer number (634858728).

Almost surely, 212212431413 is an apocalyptic number.

12212431413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12212431413 is a deficient number, since it is larger than the sum of its proper divisors (8103047883).

12212431413 is a wasteful number, since it uses less digits than its factorization.

12212431413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612893.

The product of its digits is 1152, while the sum is 24.

Adding to 12212431413 its reverse (31413421221), we get a palindrome (43625852634).

The spelling of 12212431413 in words is "twelve billion, two hundred twelve million, four hundred thirty-one thousand, four hundred thirteen".

Divisors: 1 3 7 13 21 39 73 91 219 273 511 949 1533 2847 6643 19929 612797 1838391 4289579 7966361 12868737 23899083 44734181 55764527 134202543 167293581 313139267 581544353 939417801 1744633059 4070810471 12212431413