Search a number
BaseRepresentation
bin111011001010101
31112112222
413121111
51432133
6352125
7154214
oct73125
945488
1030293
112083a
1215645
1310a33
14b07b
158e98
hex7655

30293 has 2 divisors, whose sum is σ = 30294. Its totient is φ = 30292.

The previous prime is 30271. The next prime is 30307. The reversal of 30293 is 39203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24964 + 5329 = 158^2 + 73^2 .

It is a cyclic number.

It is not a de Polignac number, because 30293 - 210 = 29269 is a prime.

It is equal to p3275 and since 30293 and 3275 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15146 + 15147.

It is an arithmetic number, because the mean of its divisors is an integer number (15147).

230293 is an apocalyptic number.

It is an amenable number.

30293 is a deficient number, since it is larger than the sum of its proper divisors (1).

30293 is an equidigital number, since it uses as much as digits as its factorization.

30293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 30293 is about 174.0488437192. The cubic root of 30293 is about 31.1731551909.

Subtracting from 30293 its sum of digits (17), we obtain a square (30276 = 1742).

Adding to 30293 its reverse (39203), we get a palindrome (69496).

It can be divided in two parts, 30 and 293, that added together give a palindrome (323).

The spelling of 30293 in words is "thirty thousand, two hundred ninety-three".