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66494 = 233247
BaseRepresentation
bin10000001110111110
310101012202
4100032332
54111434
61231502
7364601
oct201676
9111182
1066494
1145a5a
1232592
132435c
141a338
1514a7e
hex103be

66494 has 4 divisors (see below), whose sum is σ = 99744. Its totient is φ = 33246.

The previous prime is 66491. The next prime is 66499. The reversal of 66494 is 49466.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49466 = 224733.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16622 + ... + 16625.

It is an arithmetic number, because the mean of its divisors is an integer number (24936).

266494 is an apocalyptic number.

66494 is a deficient number, since it is larger than the sum of its proper divisors (33250).

66494 is a wasteful number, since it uses less digits than its factorization.

66494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33249.

The product of its digits is 5184, while the sum is 29.

The square root of 66494 is about 257.8643054011. The cubic root of 66494 is about 40.5129765865.

The spelling of 66494 in words is "sixty-six thousand, four hundred ninety-four".

Divisors: 1 2 33247 66494