Search a number
47123 is a prime number
BaseRepresentation
bin1011100000010011
32101122022
423200103
53001443
61002055
7254246
oct134023
971568
1047123
113244a
122332b
13185ab
141325d
15de68
hexb813

47123 has 2 divisors, whose sum is σ = 47124. Its totient is φ = 47122.

The previous prime is 47119. The next prime is 47129. The reversal of 47123 is 32174.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47123 - 22 = 47119 is a prime.

It is not a weakly prime, because it can be changed into another prime (47129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23561 + 23562.

It is an arithmetic number, because the mean of its divisors is an integer number (23562).

247123 is an apocalyptic number.

47123 is a deficient number, since it is larger than the sum of its proper divisors (1).

47123 is an equidigital number, since it uses as much as digits as its factorization.

47123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168, while the sum is 17.

The square root of 47123 is about 217.0783268777. The cubic root of 47123 is about 36.1197146277.

Adding to 47123 its reverse (32174), we get a palindrome (79297).

It can be divided in two parts, 471 and 23, that added together give a palindrome (494).

The spelling of 47123 in words is "forty-seven thousand, one hundred twenty-three", and thus it is an iban number.