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42488297 is a prime number
BaseRepresentation
bin1010001000010…
…1000111101001
32221221121222122
42202011013221
541334111142
64114401025
71024100405
oct242050751
987847878
1042488297
1121a900a5
1212290175
138a58307
145900105
153ae41d2
hex28851e9

42488297 has 2 divisors, whose sum is σ = 42488298. Its totient is φ = 42488296.

The previous prime is 42488279. The next prime is 42488359. The reversal of 42488297 is 79288424.

Together with previous prime (42488279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42133081 + 355216 = 6491^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 42488297 - 26 = 42488233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42488207) 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, 21244148 + 21244149.

It is an arithmetic number, because the mean of its divisors is an integer number (21244149).

Almost surely, 242488297 is an apocalyptic number.

It is an amenable number.

42488297 is a deficient number, since it is larger than the sum of its proper divisors (1).

42488297 is an equidigital number, since it uses as much as digits as its factorization.

42488297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 44.

The square root of 42488297 is about 6518.3047642773. The cubic root of 42488297 is about 348.9445674584.

The spelling of 42488297 in words is "forty-two million, four hundred eighty-eight thousand, two hundred ninety-seven".