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212582471 is a prime number
BaseRepresentation
bin11001010101111…
…00000001000111
3112211000022022212
430222330001013
5413410114341
633032214035
75160630653
oct1452740107
9484008285
10212582471
11a9aa73a2
125b23a31b
133507145a
1420339a63
15139e25eb
hexcabc047

212582471 has 2 divisors, whose sum is σ = 212582472. Its totient is φ = 212582470.

The previous prime is 212582459. The next prime is 212582479. The reversal of 212582471 is 174285212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212582471 is a prime.

It is a super-3 number, since 3×2125824713 (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212582479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106291235 + 106291236.

It is an arithmetic number, because the mean of its divisors is an integer number (106291236).

Almost surely, 2212582471 is an apocalyptic number.

212582471 is a deficient number, since it is larger than the sum of its proper divisors (1).

212582471 is an equidigital number, since it uses as much as digits as its factorization.

212582471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8960, while the sum is 32.

The square root of 212582471 is about 14580.2081946727. The cubic root of 212582471 is about 596.8187842161.

The spelling of 212582471 in words is "two hundred twelve million, five hundred eighty-two thousand, four hundred seventy-one".