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64063471 is a prime number
BaseRepresentation
bin1111010001100…
…0011111101111
311110112202120011
43310120133233
5112400012341
610205034051
71405346653
oct364303757
9143482504
1064063471
113318691a
1219555927
13103706a4
148718a63
155956b81
hex3d187ef

64063471 has 2 divisors, whose sum is σ = 64063472. Its totient is φ = 64063470.

The previous prime is 64063469. The next prime is 64063477. The reversal of 64063471 is 17436046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64063471 - 21 = 64063469 is a prime.

It is a super-3 number, since 3×640634713 (a number of 24 digits) contains 333 as substring.

Together with 64063469, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64063477) 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, 32031735 + 32031736.

It is an arithmetic number, because the mean of its divisors is an integer number (32031736).

Almost surely, 264063471 is an apocalyptic number.

64063471 is a deficient number, since it is larger than the sum of its proper divisors (1).

64063471 is an equidigital number, since it uses as much as digits as its factorization.

64063471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 64063471 is about 8003.9659544503. The cubic root of 64063471 is about 400.1321875613.

The spelling of 64063471 in words is "sixty-four million, sixty-three thousand, four hundred seventy-one".