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64164271 is a prime number
BaseRepresentation
bin1111010011000…
…1000110101111
311110201212211111
43310301012233
5112411224041
610211132451
71406246563
oct364610657
9143655744
1064164271
1133245626
12195a4127
13103a7532
1487436a3
155976981
hex3d311af

64164271 has 2 divisors, whose sum is σ = 64164272. Its totient is φ = 64164270.

The previous prime is 64164257. The next prime is 64164313. The reversal of 64164271 is 17246146.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64164271 is a prime.

It is a super-2 number, since 2×641642712 = 8234107345922882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64164241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32082135 + 32082136.

It is an arithmetic number, because the mean of its divisors is an integer number (32082136).

Almost surely, 264164271 is an apocalyptic number.

64164271 is a deficient number, since it is larger than the sum of its proper divisors (1).

64164271 is an equidigital number, since it uses as much as digits as its factorization.

64164271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 64164271 is about 8010.2603578161. The cubic root of 64164271 is about 400.3419388612.

The spelling of 64164271 in words is "sixty-four million, one hundred sixty-four thousand, two hundred seventy-one".