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14457109 = 29498521
BaseRepresentation
bin110111001001…
…100100010101
31000012111102111
4313021210111
512200111414
61233511021
7233612002
oct67114425
930174374
1014457109
118184927
124a12471
132cc2504
141cc48a9
1514088c4
hexdc9915

14457109 has 4 divisors (see below), whose sum is σ = 14955660. Its totient is φ = 13958560.

The previous prime is 14457077. The next prime is 14457137. The reversal of 14457109 is 90175441.

14457109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90175441 = 412199401.

It can be written as a sum of positive squares in 2 ways, for example, as 5276209 + 9180900 = 2297^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 14457109 - 25 = 14457077 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 (14457809) 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, 249232 + ... + 249289.

It is an arithmetic number, because the mean of its divisors is an integer number (3738915).

Almost surely, 214457109 is an apocalyptic number.

It is an amenable number.

14457109 is a deficient number, since it is larger than the sum of its proper divisors (498551).

14457109 is an equidigital number, since it uses as much as digits as its factorization.

14457109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498550.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 14457109 is about 3802.2505177855. The cubic root of 14457109 is about 243.6092745446.

The spelling of 14457109 in words is "fourteen million, four hundred fifty-seven thousand, one hundred nine".

Divisors: 1 29 498521 14457109