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13230451 = 132344249
BaseRepresentation
bin110010011110…
…000101110011
3220220011202201
4302132011303
511341333301
61151324031
7220312513
oct62360563
926804681
1013230451
117517263
124520617
132983090
141a85843
151265201
hexc9e173

13230451 has 8 divisors (see below), whose sum is σ = 14868000. Its totient is φ = 11681472.

The previous prime is 13230419. The next prime is 13230457. The reversal of 13230451 is 15403231.

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 13230451 - 25 = 13230419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13230457) 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 in 7 ways as a sum of consecutive naturals, for example, 21826 + ... + 22423.

It is an arithmetic number, because the mean of its divisors is an integer number (1858500).

Almost surely, 213230451 is an apocalyptic number.

13230451 is a deficient number, since it is larger than the sum of its proper divisors (1637549).

13230451 is a wasteful number, since it uses less digits than its factorization.

13230451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44285.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13230451 is about 3637.3686917881. The cubic root of 13230451 is about 236.5147423642.

Adding to 13230451 its reverse (15403231), we get a palindrome (28633682).

It can be divided in two parts, 132304 and 51, that added together give a triangular number (132355 = T514).

The spelling of 13230451 in words is "thirteen million, two hundred thirty thousand, four hundred fifty-one".

Divisors: 1 13 23 299 44249 575237 1017727 13230451