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14387825 = 52575513
BaseRepresentation
bin110110111000…
…101001110001
31000001222101102
4312320221301
512140402300
61232214145
7233203004
oct66705161
930058342
1014387825
118137871
12499a355
132c99b0a
141ca753b
1513e30d5
hexdb8a71

14387825 has 6 divisors (see below), whose sum is σ = 17840934. Its totient is φ = 11510240.

The previous prime is 14387819. The next prime is 14387827. The reversal of 14387825 is 52878341.

It can be written as a sum of positive squares in 3 ways, for example, as 69169 + 14318656 = 263^2 + 3784^2 .

It is not a de Polignac number, because 14387825 - 24 = 14387809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14387827) 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 5 ways as a sum of consecutive naturals, for example, 287732 + ... + 287781.

It is an arithmetic number, because the mean of its divisors is an integer number (2973489).

Almost surely, 214387825 is an apocalyptic number.

It is an amenable number.

14387825 is a deficient number, since it is larger than the sum of its proper divisors (3453109).

14387825 is an equidigital number, since it uses as much as digits as its factorization.

14387825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575523 (or 575518 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 14387825 is about 3793.1286558724. The cubic root of 14387825 is about 243.2194949259.

The spelling of 14387825 in words is "fourteen million, three hundred eighty-seven thousand, eight hundred twenty-five".

Divisors: 1 5 25 575513 2877565 14387825