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25270 = 257192
BaseRepresentation
bin110001010110110
31021122221
412022312
51302040
6312554
7133450
oct61266
937587
1025270
1117a93
121275a
13b66b
1492d0
15774a
hex62b6

25270 has 24 divisors (see below), whose sum is σ = 54864. Its totient is φ = 8208.

The previous prime is 25261. The next prime is 25301. The reversal of 25270 is 7252.

It is a happy number.

25270 is nontrivially palindromic in base 13.

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

It is a congruent number.

It is an unprimeable number.

25270 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (2286).

225270 is an apocalyptic number.

25270 is an abundant number, since it is smaller than the sum of its proper divisors (29594).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27432).

25270 is a wasteful number, since it uses less digits than its factorization.

25270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 25270 is about 158.9654050415. The cubic root of 25270 is about 29.3450653255.

The spelling of 25270 in words is "twenty-five thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 361 665 722 1330 1805 2527 3610 5054 12635 25270