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64216403 is a prime number
BaseRepresentation
bin1111010011110…
…1110101010011
311110211112100022
43310331311103
5112414411103
610212214055
71406554556
oct364756523
9143745308
1064216403
1133280809
121960a32b
13103c5194
14875869d
155987138
hex3d3dd53

64216403 has 2 divisors, whose sum is σ = 64216404. Its totient is φ = 64216402.

The previous prime is 64216387. The next prime is 64216433. The reversal of 64216403 is 30461246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64216403 - 24 = 64216387 is a prime.

It is not a weakly prime, because it can be changed into another prime (64216433) 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 as a sum of consecutive naturals, namely, 32108201 + 32108202.

It is an arithmetic number, because the mean of its divisors is an integer number (32108202).

Almost surely, 264216403 is an apocalyptic number.

64216403 is a deficient number, since it is larger than the sum of its proper divisors (1).

64216403 is an equidigital number, since it uses as much as digits as its factorization.

64216403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64216403 is about 8013.5137736202. The cubic root of 64216403 is about 400.4503323949.

Adding to 64216403 its reverse (30461246), we get a palindrome (94677649).

The spelling of 64216403 in words is "sixty-four million, two hundred sixteen thousand, four hundred three".