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BaseRepresentation
bin1111101001001111
310020220022
433221033
54022304
61212355
7354551
oct175117
9106808
1064079
1144164
12310bb
1323222
14194d1
1513ebe
hexfa4f

64079 has 4 divisors (see below), whose sum is σ = 64680. Its totient is φ = 63480.

The previous prime is 64067. The next prime is 64081. The reversal of 64079 is 97046.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 97046 = 248523.

It is a cyclic number.

It is not a de Polignac number, because 64079 - 24 = 64063 is a prime.

It is a super-2 number, since 2×640792 = 8212236482, which contains 22 as substring.

It is a Lucas number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 369.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

264079 is an apocalyptic number.

64079 is a deficient number, since it is larger than the sum of its proper divisors (601).

64079 is a wasteful number, since it uses less digits than its factorization.

64079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 64079 is about 253.1383021196. The cubic root of 64079 is about 40.0164515661.

The spelling of 64079 in words is "sixty-four thousand, seventy-nine".

Divisors: 1 139 461 64079