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5218487 is a prime number
BaseRepresentation
bin10011111010000010110111
3100211010102022
4103322002313
52313442422
6303503355
762233151
oct23720267
910733368
105218487
112a447aa
1218b7b5b
131109381
1499bad1
156d1342
hex4fa0b7

5218487 has 2 divisors, whose sum is σ = 5218488. Its totient is φ = 5218486.

The previous prime is 5218481. The next prime is 5218511. The reversal of 5218487 is 7848125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5218487 - 24 = 5218471 is a 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 (5218481) 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, 2609243 + 2609244.

It is an arithmetic number, because the mean of its divisors is an integer number (2609244).

Almost surely, 25218487 is an apocalyptic number.

5218487 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218487 is an equidigital number, since it uses as much as digits as its factorization.

5218487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 35.

The square root of 5218487 is about 2284.4007967080. The cubic root of 5218487 is about 173.4528880160.

The spelling of 5218487 in words is "five million, two hundred eighteen thousand, four hundred eighty-seven".