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14372009 = 25157259
BaseRepresentation
bin110110110100…
…110010101001
31000001011200122
4312310302221
512134401014
61232013025
7233105621
oct66646251
930034618
1014372009
1181269a3
124991175
132c92862
141ca1881
1513dd58e
hexdb4ca9

14372009 has 4 divisors (see below), whose sum is σ = 14429520. Its totient is φ = 14314500.

The previous prime is 14371993. The next prime is 14372011. The reversal of 14372009 is 90027341.

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: 90027341 = 255135291.

It is a cyclic number.

It is not a de Polignac number, because 14372009 - 24 = 14371993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14372069) 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 3 ways as a sum of consecutive naturals, for example, 28379 + ... + 28880.

It is an arithmetic number, because the mean of its divisors is an integer number (3607380).

Almost surely, 214372009 is an apocalyptic number.

It is an amenable number.

14372009 is a deficient number, since it is larger than the sum of its proper divisors (57511).

14372009 is an equidigital number, since it uses as much as digits as its factorization.

14372009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57510.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 14372009 is about 3791.0432601066. The cubic root of 14372009 is about 243.1303415404.

The spelling of 14372009 in words is "fourteen million, three hundred seventy-two thousand, nine".

Divisors: 1 251 57259 14372009