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14507149 = 83917291
BaseRepresentation
bin110111010101…
…110010001101
31000022001001211
4313111302031
512203212044
61234534421
7234210616
oct67256215
930261054
1014507149
118209488
124a37411
13300c217
141cd8c0d
151418634
hexdd5c8d

14507149 has 4 divisors (see below), whose sum is σ = 14525280. Its totient is φ = 14489020.

The previous prime is 14507147. The next prime is 14507159. The reversal of 14507149 is 94170541.

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: 94170541 = 239394019.

It is a cyclic number.

It is not a de Polignac number, because 14507149 - 21 = 14507147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14507149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14507147) 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, 7807 + ... + 9484.

It is an arithmetic number, because the mean of its divisors is an integer number (3631320).

Almost surely, 214507149 is an apocalyptic number.

It is an amenable number.

14507149 is a deficient number, since it is larger than the sum of its proper divisors (18131).

14507149 is an equidigital number, since it uses as much as digits as its factorization.

14507149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18130.

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

The square root of 14507149 is about 3808.8251469449. The cubic root of 14507149 is about 243.8900169469.

The spelling of 14507149 in words is "fourteen million, five hundred seven thousand, one hundred forty-nine".

Divisors: 1 839 17291 14507149