Search a number
-
+
14630321 = 67218363
BaseRepresentation
bin110111110011…
…110110110001
31000112022000202
4313303312301
512221132241
61241324545
7235232666
oct67636661
930468022
1014630321
118292a82
124a96755
1330532c4
141d2ba6d
15143ed9b
hexdf3db1

14630321 has 4 divisors (see below), whose sum is σ = 14848752. Its totient is φ = 14411892.

The previous prime is 14630311. The next prime is 14630333. The reversal of 14630321 is 12303641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12303641 = 71757663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14630321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14630293 and 14630302.

It is not an unprimeable number, because it can be changed into a prime (14630311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109115 + ... + 109248.

It is an arithmetic number, because the mean of its divisors is an integer number (3712188).

Almost surely, 214630321 is an apocalyptic number.

It is an amenable number.

14630321 is a deficient number, since it is larger than the sum of its proper divisors (218431).

14630321 is an equidigital number, since it uses as much as digits as its factorization.

14630321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218430.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 14630321 is about 3824.9602612315. The cubic root of 14630321 is about 244.5783166993.

Adding to 14630321 its reverse (12303641), we get a palindrome (26933962).

The spelling of 14630321 in words is "fourteen million, six hundred thirty thousand, three hundred twenty-one".

Divisors: 1 67 218363 14630321