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305023 is a prime number
BaseRepresentation
bin1001010011101111111
3120111102011
41022131333
534230043
610312051
72410165
oct1123577
9514364
10305023
11199194
12128627
13a8ab4
147d235
156059d
hex4a77f

305023 has 2 divisors, whose sum is σ = 305024. Its totient is φ = 305022.

The previous prime is 305021. The next prime is 305029. The reversal of 305023 is 320503.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 305023 - 21 = 305021 is a prime.

Together with 305021, it forms a pair of twin primes.

It is a plaindrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 304994 and 305012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152511 + 152512.

It is an arithmetic number, because the mean of its divisors is an integer number (152512).

2305023 is an apocalyptic number.

305023 is a deficient number, since it is larger than the sum of its proper divisors (1).

305023 is an equidigital number, since it uses as much as digits as its factorization.

305023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 305023 is about 552.2888736884. The cubic root of 305023 is about 67.3148469548.

Adding to 305023 its reverse (320503), we get a palindrome (625526).

The spelling of 305023 in words is "three hundred five thousand, twenty-three".