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19225 = 52769
BaseRepresentation
bin100101100011001
3222101001
410230121
51103400
6225001
7110023
oct45431
928331
1019225
1113498
12b161
13899b
147013
155a6a
hex4b19

19225 has 6 divisors (see below), whose sum is σ = 23870. Its totient is φ = 15360.

The previous prime is 19219. The next prime is 19231. The reversal of 19225 is 52291.

19225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (19219) and next prime (19231).

It can be written as a sum of positive squares in 3 ways, for example, as 729 + 18496 = 27^2 + 136^2 .

It is not a de Polignac number, because 19225 - 29 = 18713 is a prime.

19225 is a lucky number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360 + ... + 409.

219225 is an apocalyptic number.

It is an amenable number.

19225 is a deficient number, since it is larger than the sum of its proper divisors (4645).

19225 is an equidigital number, since it uses as much as digits as its factorization.

19225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779 (or 774 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 19225 is about 138.6542462386. The cubic root of 19225 is about 26.7889350624.

The spelling of 19225 in words is "nineteen thousand, two hundred twenty-five".

Divisors: 1 5 25 769 3845 19225