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30394305 = 335225143
BaseRepresentation
bin111001111110…
…0011111000001
32010012012011000
41303330133001
530240104210
63003242213
7516230064
oct163743701
963165130
1030394305
111617a767
12a219369
1363b25c6
1440728db
152a05ac0
hex1cfc7c1

30394305 has 16 divisors (see below), whose sum is σ = 54034560. Its totient is φ = 16210224.

The previous prime is 30394303. The next prime is 30394321. The reversal of 30394305 is 50349303.

It is not a de Polignac number, because 30394305 - 21 = 30394303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30394303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112437 + ... + 112706.

It is an arithmetic number, because the mean of its divisors is an integer number (3377160).

Almost surely, 230394305 is an apocalyptic number.

It is an amenable number.

30394305 is a deficient number, since it is larger than the sum of its proper divisors (23640255).

30394305 is a wasteful number, since it uses less digits than its factorization.

30394305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225157 (or 225151 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 30394305 is about 5513.1030282410. The cubic root of 30394305 is about 312.0786599007.

The spelling of 30394305 in words is "thirty million, three hundred ninety-four thousand, three hundred five".

Divisors: 1 3 5 9 15 27 45 135 225143 675429 1125715 2026287 3377145 6078861 10131435 30394305