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47015 = 59403
BaseRepresentation
bin1011011110100111
32101111022
423132213
53001030
61001355
7254033
oct133647
971438
1047015
1132361
122325b
1318527
14131c3
15dde5
hexb7a7

47015 has 4 divisors (see below), whose sum is σ = 56424. Its totient is φ = 37608.

The previous prime is 46997. The next prime is 47017. The reversal of 47015 is 51074.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51074 = 225537.

It is a cyclic number.

It is not a de Polignac number, because 47015 - 214 = 30631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46984 and 47002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47017) 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, 4697 + ... + 4706.

It is an arithmetic number, because the mean of its divisors is an integer number (14106).

247015 is an apocalyptic number.

47015 is a deficient number, since it is larger than the sum of its proper divisors (9409).

47015 is an equidigital number, since it uses as much as digits as its factorization.

47015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 47015 is about 216.8294260473. The cubic root of 47015 is about 36.0920995697.

Adding to 47015 its reverse (51074), we get a palindrome (98089).

The spelling of 47015 in words is "forty-seven thousand, fifteen".

Divisors: 1 5 9403 47015