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14378189 = 72054027
BaseRepresentation
bin110110110110…
…010011001101
31000001111011112
4312312103031
512140100224
61232101405
7233132630
oct66662315
930044145
1014378189
118130601
124994865
132c95607
141ca3c17
1513e030e
hexdb64cd

14378189 has 4 divisors (see below), whose sum is σ = 16432224. Its totient is φ = 12324156.

The previous prime is 14378183. The next prime is 14378191. The reversal of 14378189 is 98187341.

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.

It is a cyclic number.

It is not a de Polignac number, because 14378189 - 28 = 14377933 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 (14378183) 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, 1027007 + ... + 1027020.

It is an arithmetic number, because the mean of its divisors is an integer number (4108056).

Almost surely, 214378189 is an apocalyptic number.

It is an amenable number.

14378189 is a deficient number, since it is larger than the sum of its proper divisors (2054035).

14378189 is an equidigital number, since it uses as much as digits as its factorization.

14378189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054034.

The product of its digits is 48384, while the sum is 41.

The square root of 14378189 is about 3791.8582515701. The cubic root of 14378189 is about 243.1651854326.

The spelling of 14378189 in words is "fourteen million, three hundred seventy-eight thousand, one hundred eighty-nine".

Divisors: 1 7 2054027 14378189