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64078871 is a prime number
BaseRepresentation
bin1111010001110…
…0010000010111
311110120112200112
43310130100113
5112401010441
610205233235
71405442603
oct364342027
9143515615
1064078871
113319744a
121956281b
13103776bc
148720503
15595b4eb
hex3d1c417

64078871 has 2 divisors, whose sum is σ = 64078872. Its totient is φ = 64078870.

The previous prime is 64078837. The next prime is 64078877. The reversal of 64078871 is 17887046.

64078871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64078871 - 214 = 64062487 is a prime.

It is a super-2 number, since 2×640788712 = 8212203417269282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64078877) 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, 32039435 + 32039436.

It is an arithmetic number, because the mean of its divisors is an integer number (32039436).

Almost surely, 264078871 is an apocalyptic number.

64078871 is a deficient number, since it is larger than the sum of its proper divisors (1).

64078871 is an equidigital number, since it uses as much as digits as its factorization.

64078871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 64078871 is about 8004.9279197254. The cubic root of 64078871 is about 400.1642471313.

The spelling of 64078871 in words is "sixty-four million, seventy-eight thousand, eight hundred seventy-one".