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13430555 = 52686111
BaseRepresentation
bin110011001110…
…111100011011
3221021100020222
4303032330123
511414234210
61155510255
7222105065
oct63167433
927240228
1013430555
117643636
1245b838b
132a23198
141ad8735
1512a4655
hexccef1b

13430555 has 4 divisors (see below), whose sum is σ = 16116672. Its totient is φ = 10744440.

The previous prime is 13430539. The next prime is 13430581. The reversal of 13430555 is 55503431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13430555 - 24 = 13430539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343051 + ... + 1343060.

It is an arithmetic number, because the mean of its divisors is an integer number (4029168).

Almost surely, 213430555 is an apocalyptic number.

13430555 is a deficient number, since it is larger than the sum of its proper divisors (2686117).

13430555 is an equidigital number, since it uses as much as digits as its factorization.

13430555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686116.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 13430555 is about 3664.7721620859. The cubic root of 13430555 is about 237.7011702743.

Adding to 13430555 its reverse (55503431), we get a palindrome (68933986).

The spelling of 13430555 in words is "thirteen million, four hundred thirty thousand, five hundred fifty-five".

Divisors: 1 5 2686111 13430555