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14224357 = 72432157
BaseRepresentation
bin110110010000…
…101111100101
3222202200011001
4312100233211
512120134412
61224513301
7231622300
oct66205745
928680131
1014224357
118035a74
12491b831
132c405a4
141c63b37
1513ae957
hexd90be5

14224357 has 18 divisors (see below), whose sum is σ = 17048358. Its totient is φ = 11832912.

The previous prime is 14224349. The next prime is 14224363. The reversal of 14224357 is 75342241.

It can be written as a sum of positive squares in only one way, i.e., 10962721 + 3261636 = 3311^2 + 1806^2 .

It is not a de Polignac number, because 14224357 - 23 = 14224349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14224387) 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 17 ways as a sum of consecutive naturals, for example, 90523 + ... + 90679.

It is an arithmetic number, because the mean of its divisors is an integer number (947131).

Almost surely, 214224357 is an apocalyptic number.

It is an amenable number.

14224357 is a deficient number, since it is larger than the sum of its proper divisors (2824001).

14224357 is an equidigital number, since it uses as much as digits as its factorization.

14224357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 207 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 14224357 is about 3771.5191899286. The cubic root of 14224357 is about 242.2948674440.

Adding to 14224357 its reverse (75342241), we get a palindrome (89566598).

The spelling of 14224357 in words is "fourteen million, two hundred twenty-four thousand, three hundred fifty-seven".

Divisors: 1 7 43 49 157 301 1099 1849 2107 6751 7693 12943 47257 90601 290293 330799 2032051 14224357