Search a number
-
+
14388149 = 19757271
BaseRepresentation
bin110110111000…
…101110110101
31000001222211102
4312320232311
512140410044
61232215445
7233203646
oct66705665
930058742
1014388149
118138036
12499a585
132c99cc9
141ca76cd
1513e324e
hexdb8bb5

14388149 has 4 divisors (see below), whose sum is σ = 15145440. Its totient is φ = 13630860.

The previous prime is 14388139. The next prime is 14388163. The reversal of 14388149 is 94188341.

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: 94188341 = 137245257.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14388149 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 (14388119) 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, 378617 + ... + 378654.

It is an arithmetic number, because the mean of its divisors is an integer number (3786360).

Almost surely, 214388149 is an apocalyptic number.

14388149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

14388149 is a deficient number, since it is larger than the sum of its proper divisors (757291).

14388149 is an equidigital number, since it uses as much as digits as its factorization.

14388149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757290.

The product of its digits is 27648, while the sum is 38.

The square root of 14388149 is about 3793.1713644390. The cubic root of 14388149 is about 243.2213206021.

The spelling of 14388149 in words is "fourteen million, three hundred eighty-eight thousand, one hundred forty-nine".

Divisors: 1 19 757271 14388149