Search a number
-
+
30803 is a prime number
BaseRepresentation
bin111100001010011
31120020212
413201103
51441203
6354335
7155543
oct74123
946225
1030803
1121163
12159ab
1311036
14b323
1591d8
hex7853

30803 has 2 divisors, whose sum is σ = 30804. Its totient is φ = 30802.

The previous prime is 30781. The next prime is 30809.

It can be divided in two parts, 30 and 803, that multiplied together give a triangular number (24090 = T219).

It is a happy number.

30803 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 30803 - 214 = 14419 is a prime.

It is an Ulam number.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (30809) 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, 15401 + 15402.

It is an arithmetic number, because the mean of its divisors is an integer number (15402).

230803 is an apocalyptic number.

30803 is a deficient number, since it is larger than the sum of its proper divisors (1).

30803 is an equidigital number, since it uses as much as digits as its factorization.

30803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30803 is about 175.5078345830. The cubic root of 30803 is about 31.3471218424.

The spelling of 30803 in words is "thirty thousand, eight hundred three".