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25230 = 235292
BaseRepresentation
bin110001010001110
31021121110
412022032
51301410
6312450
7133362
oct61216
937543
1025230
1117a57
1212726
13b63a
1492a2
157720
hex628e

25230 has 24 divisors (see below), whose sum is σ = 62712. Its totient is φ = 6496.

The previous prime is 25229. The next prime is 25237. The reversal of 25230 is 3252.

25230 is nontrivially palindromic in base 8.

25230 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

25230 is strictly pandigital in base 6.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25237) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 856 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (2613).

225230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31356).

25230 is an abundant number, since it is smaller than the sum of its proper divisors (37482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25230 is a wasteful number, since it uses less digits than its factorization.

25230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 25230 is about 158.8395416765. The cubic root of 25230 is about 29.3295736687.

Adding to 25230 its reverse (3252), we get a palindrome (28482).

It can be divided in two parts, 252 and 30, that added together give a palindrome (282).

The spelling of 25230 in words is "twenty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 841 870 1682 2523 4205 5046 8410 12615 25230