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45039 = 315013
BaseRepresentation
bin1010111111101111
32021210010
422333233
52420124
6544303
7245211
oct127757
967703
1045039
1130925
1222093
1317667
14125b1
15d529
hexafef

45039 has 4 divisors (see below), whose sum is σ = 60056. Its totient is φ = 30024.

The previous prime is 45013. The next prime is 45053. The reversal of 45039 is 93054.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45039 - 25 = 45007 is a prime.

It is a D-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 (45139) 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 in 3 ways as a sum of consecutive naturals, for example, 7504 + ... + 7509.

It is an arithmetic number, because the mean of its divisors is an integer number (15014).

245039 is an apocalyptic number.

45039 is a deficient number, since it is larger than the sum of its proper divisors (15017).

45039 is a wasteful number, since it uses less digits than its factorization.

45039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15016.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 45039 is about 212.2239383293. The cubic root of 45039 is about 35.5792055474.

The spelling of 45039 in words is "forty-five thousand, thirty-nine".

Divisors: 1 3 15013 45039