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47039 = 172767
BaseRepresentation
bin1011011110111111
32101112012
423132333
53001124
61001435
7254066
oct133677
971465
1047039
1132383
122327b
1318545
14131dd
15de0e
hexb7bf

47039 has 4 divisors (see below), whose sum is σ = 49824. Its totient is φ = 44256.

The previous prime is 47017. The next prime is 47041. The reversal of 47039 is 93074.

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

It is a cyclic number.

It is not a de Polignac number, because 47039 - 212 = 42943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 47039.

It is not an unprimeable number, because it can be changed into a prime (47059) 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, 1367 + ... + 1400.

It is an arithmetic number, because the mean of its divisors is an integer number (12456).

247039 is an apocalyptic number.

47039 is a deficient number, since it is larger than the sum of its proper divisors (2785).

47039 is a wasteful number, since it uses less digits than its factorization.

47039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 47039 is about 216.8847620281. The cubic root of 47039 is about 36.0982399011.

The spelling of 47039 in words is "forty-seven thousand, thirty-nine".

Divisors: 1 17 2767 47039