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42680471 is a prime number
BaseRepresentation
bin1010001011010…
…0000010010111
32222022101121012
42202310002113
541411233341
64122442435
71025530601
oct242640227
988271535
1042680471
1122101519
121236341b
138ac4922
145950171
153b310eb
hex28b4097

42680471 has 2 divisors, whose sum is σ = 42680472. Its totient is φ = 42680470.

The previous prime is 42680453. The next prime is 42680483. The reversal of 42680471 is 17408624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42680471 - 214 = 42664087 is a prime.

It is a super-3 number, since 3×426804713 (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42680401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21340235 + 21340236.

It is an arithmetic number, because the mean of its divisors is an integer number (21340236).

Almost surely, 242680471 is an apocalyptic number.

42680471 is a deficient number, since it is larger than the sum of its proper divisors (1).

42680471 is an equidigital number, since it uses as much as digits as its factorization.

42680471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 42680471 is about 6533.0292361201. The cubic root of 42680471 is about 349.4698668183.

The spelling of 42680471 in words is "forty-two million, six hundred eighty thousand, four hundred seventy-one".