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13430305 = 57383723
BaseRepresentation
bin110011001110…
…111000100001
3221021022220201
4303032320201
511414232210
61155505201
7222104260
oct63167041
927238821
1013430305
117643429
1245b8201
132a23035
141ad85d7
1512a453a
hexccee21

13430305 has 8 divisors (see below), whose sum is σ = 18418752. Its totient is φ = 9209328.

The previous prime is 13430303. The next prime is 13430369. The reversal of 13430305 is 50303431.

13430305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13430305 - 21 = 13430303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13430303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191827 + ... + 191896.

It is an arithmetic number, because the mean of its divisors is an integer number (2302344).

Almost surely, 213430305 is an apocalyptic number.

It is an amenable number.

13430305 is a deficient number, since it is larger than the sum of its proper divisors (4988447).

13430305 is an equidigital number, since it uses as much as digits as its factorization.

13430305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383735.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13430305 is about 3664.7380533948. The cubic root of 13430305 is about 237.6996953871.

Adding to 13430305 its reverse (50303431), we get a palindrome (63733736).

The spelling of 13430305 in words is "thirteen million, four hundred thirty thousand, three hundred five".

Divisors: 1 5 7 35 383723 1918615 2686061 13430305