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305130363 = 3229503883
BaseRepresentation
bin10010001011111…
…110101101111011
3210021011020011120
4102023332231323
51111103132423
650140000323
710363364616
oct2213765573
9707136146
10305130363
11147268a5a
12862300a3
134b2a6015
142c74b17d
151bbc3ee3
hex122feb7b

305130363 has 16 divisors (see below), whose sum is σ = 409893120. Its totient is φ = 201900384.

The previous prime is 305130361. The next prime is 305130389. The reversal of 305130363 is 363031503.

It is not a de Polignac number, because 305130363 - 21 = 305130361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305130361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345120 + ... + 346002.

It is an arithmetic number, because the mean of its divisors is an integer number (25618320).

Almost surely, 2305130363 is an apocalyptic number.

305130363 is a deficient number, since it is larger than the sum of its proper divisors (104762757).

305130363 is a wasteful number, since it uses less digits than its factorization.

305130363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 2430, while the sum is 24.

The square root of 305130363 is about 17467.9810796783. The cubic root of 305130363 is about 673.2274392882.

Adding to 305130363 its reverse (363031503), we get a palindrome (668161866).

The spelling of 305130363 in words is "three hundred five million, one hundred thirty thousand, three hundred sixty-three".

Divisors: 1 3 229 503 687 883 1509 2649 115187 202207 345561 444149 606621 1332447 101710121 305130363