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212132203231 = 1328357660289
BaseRepresentation
bin1100010110010000010…
…0001000101011011111
3202021112212011110120211
43011210010020223133
511433421321000411
6241241401153251
721216555655624
oct3054404105337
9667485143524
10212132203231
1181a6810a043
123514278b827
1317008991260
14a3a54b434b
1557b860b221
hex3164108adf

212132203231 has 8 divisors (see below), whose sum is σ = 229257313040. Its totient is φ = 195122414592.

The previous prime is 212132203201. The next prime is 212132203319. The reversal of 212132203231 is 132302231212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212132203231 - 27 = 212132203103 is a prime.

It is a super-2 number, since 2×2121322032312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132203201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28826466 + ... + 28833823.

It is an arithmetic number, because the mean of its divisors is an integer number (28657164130).

Almost surely, 2212132203231 is an apocalyptic number.

212132203231 is a deficient number, since it is larger than the sum of its proper divisors (17125109809).

212132203231 is a wasteful number, since it uses less digits than its factorization.

212132203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57660585.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212132203231 its reverse (132302231212), we get a palindrome (344434434443).

The spelling of 212132203231 in words is "two hundred twelve billion, one hundred thirty-two million, two hundred three thousand, two hundred thirty-one".

Divisors: 1 13 283 3679 57660289 749583757 16317861787 212132203231