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14530321 = 135321089
BaseRepresentation
bin110111011011…
…011100010001
31000100012212001
4313123130101
512204432241
61235234001
7234335311
oct67333421
930305761
1014530321
118224933
124a48901
133019930
141d03441
151420431
hexddb711

14530321 has 8 divisors (see below), whose sum is σ = 15944040. Its totient is φ = 13158912.

The previous prime is 14530301. The next prime is 14530337. The reversal of 14530321 is 12303541.

It can be written as a sum of positive squares in 4 ways, for example, as 5313025 + 9217296 = 2305^2 + 3036^2 .

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

It is not a de Polignac number, because 14530321 - 213 = 14522129 is a prime.

It is a super-2 number, since 2×145303212 = 422260456726082, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (14530301) 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, 9856 + ... + 11233.

It is an arithmetic number, because the mean of its divisors is an integer number (1993005).

Almost surely, 214530321 is an apocalyptic number.

It is an amenable number.

14530321 is a deficient number, since it is larger than the sum of its proper divisors (1413719).

14530321 is a wasteful number, since it uses less digits than its factorization.

14530321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155.

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

The square root of 14530321 is about 3811.8658161063. The cubic root of 14530321 is about 244.0198015373.

Adding to 14530321 its reverse (12303541), we get a palindrome (26833862).

The spelling of 14530321 in words is "fourteen million, five hundred thirty thousand, three hundred twenty-one".

Divisors: 1 13 53 689 21089 274157 1117717 14530321