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14187425 = 52781071
BaseRepresentation
bin110110000111…
…101110100001
3222200210111012
4312013232201
512112444200
61224030305
7231406520
oct66075641
928623435
1014187425
11801024a
124902395
132c29835
141c544b7
1513a3a35
hexd87ba1

14187425 has 12 divisors (see below), whose sum is σ = 20105856. Its totient is φ = 9728400.

The previous prime is 14187419. The next prime is 14187427. The reversal of 14187425 is 52478141.

It is a happy number.

It is not a de Polignac number, because 14187425 - 222 = 9993121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 14187391 and 14187400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14187427) 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 11 ways as a sum of consecutive naturals, for example, 40361 + ... + 40710.

It is an arithmetic number, because the mean of its divisors is an integer number (1675488).

Almost surely, 214187425 is an apocalyptic number.

It is an amenable number.

14187425 is a deficient number, since it is larger than the sum of its proper divisors (5918431).

14187425 is an equidigital number, since it uses as much as digits as its factorization.

14187425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81088 (or 81083 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 14187425 is about 3766.6198374670. The cubic root of 14187425 is about 242.0849882492.

The spelling of 14187425 in words is "fourteen million, one hundred eighty-seven thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 81071 405355 567497 2026775 2837485 14187425