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238025 = 529521
BaseRepresentation
bin111010000111001001
3110002111202
4322013021
530104100
65033545
72010644
oct720711
9402452
10238025
11152917
12b58b5
1384458
1462a5b
154a7d5
hex3a1c9

238025 has 6 divisors (see below), whose sum is σ = 295182. Its totient is φ = 190400.

The previous prime is 238019. The next prime is 238031. The reversal of 238025 is 520832.

238025 is digitally balanced in base 2, 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 (238019) and next prime (238031).

It can be written as a sum of positive squares in 3 ways, for example, as 11449 + 226576 = 107^2 + 476^2 .

It is not a de Polignac number, because 238025 - 24 = 238009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 237988 and 238006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4736 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (49197).

2238025 is an apocalyptic number.

238025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238025 is a deficient number, since it is larger than the sum of its proper divisors (57157).

238025 is an equidigital number, since it uses as much as digits as its factorization.

238025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531 (or 9526 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 238025 is about 487.8780585351. The cubic root of 238025 is about 61.9737141434.

Adding to 238025 its reverse (520832), we get a palindrome (758857).

The spelling of 238025 in words is "two hundred thirty-eight thousand, twenty-five".

Divisors: 1 5 25 9521 47605 238025