Search a number
-
+
47287 is a prime number
BaseRepresentation
bin1011100010110111
32101212101
423202313
53003122
61002531
7254602
oct134267
971771
1047287
1132589
1223447
13186a6
1413339
15e027
hexb8b7

47287 has 2 divisors, whose sum is σ = 47288. Its totient is φ = 47286.

The previous prime is 47279. The next prime is 47293. The reversal of 47287 is 78274.

47287 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47287 - 23 = 47279 is a prime.

47287 is a lucky number.

It is a plaindrome in base 12 and base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47207) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23643 + 23644.

It is an arithmetic number, because the mean of its divisors is an integer number (23644).

247287 is an apocalyptic number.

47287 is a deficient number, since it is larger than the sum of its proper divisors (1).

47287 is an equidigital number, since it uses as much as digits as its factorization.

47287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 28.

The square root of 47287 is about 217.4557426236. The cubic root of 47287 is about 36.1615680364.

The spelling of 47287 in words is "forty-seven thousand, two hundred eighty-seven".