Search a number
-
+
14507231 = 19375167
BaseRepresentation
bin110111010101…
…110011011111
31000022001011212
4313111303133
512203212411
61234535035
7234211064
oct67256337
930261155
1014507231
118209552
124a3747b
13300c27b
141cd8c6b
15141868b
hexdd5cdf

14507231 has 4 divisors (see below), whose sum is σ = 14582592. Its totient is φ = 14431872.

The previous prime is 14507197. The next prime is 14507257. The reversal of 14507231 is 13270541.

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

It is a cyclic number.

It is not a de Polignac number, because 14507231 - 210 = 14506207 is a prime.

It is a super-2 number, since 2×145072312 = 420919502574722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14507197 and 14507206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14507131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37391 + ... + 37776.

It is an arithmetic number, because the mean of its divisors is an integer number (3645648).

Almost surely, 214507231 is an apocalyptic number.

14507231 is a deficient number, since it is larger than the sum of its proper divisors (75361).

14507231 is an equidigital number, since it uses as much as digits as its factorization.

14507231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75360.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 14507231 is about 3808.8359114039. The cubic root of 14507231 is about 243.8904764662.

Adding to 14507231 its reverse (13270541), we get a palindrome (27777772).

The spelling of 14507231 in words is "fourteen million, five hundred seven thousand, two hundred thirty-one".

Divisors: 1 193 75167 14507231