Number of the day: 47455

Properties of the number 47455:

47455 = 5 × 9491 is semiprime and squarefree.
47455 has 2 distinct prime factors, 4 divisors, 11 antidivisors and 37960 totatives.
47455 has a semiprime digit sum 25 in base 10.
Reversing the decimal digits of 47455 results in an emirpimes.
47455 = 23728² - 23727² = 4748² - 4743² is the difference of 2 nonnegative squares in 2 ways.
47455 is the difference of 2 positive pentagonal numbers in 2 ways.
47455 is not the sum of 3 positive squares.
47455² = 28473² + 37964² is the sum of 2 positive squares in 1 way.
47455² is the sum of 3 positive squares.
47455 is a divisor of 1553⁵² - 1.
47455 is an emirpimes in (at least) the following bases: 3, 9, 10, 12, 15, 17, 20, 21, 27, 28, 30, 32, 34, 35, 41, 43, 49, 57, 67, 68, 73, 75, 80, 83, 90, 92, and 94.
47455 is palindromic in (at least) the following bases: 39, and -43.
47455 in base 38 = WWV and consists of only the digits 'V' and 'W'.
47455 in base 39 = V7V and consists of only the digits '7' and 'V'.
47455 in base 42 = Qbb and consists of only the digits 'Q' and 'b'.

The number 47455 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequence (among others):

Sequence number and description below are taken from OEIS.
A184629: Floor(1/{(5+n^4)^(1/4)}), where {}=fractional part.