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238528 = 263727
BaseRepresentation
bin111010001111000000
3110010012101
4322033000
530113103
65040144
72012263
oct721700
9403171
10238528
11153234
12b6054
1384754
1462cda
154aa1d
hex3a3c0

238528 has 14 divisors (see below), whose sum is σ = 473456. Its totient is φ = 119232.

The previous prime is 238519. The next prime is 238529. The reversal of 238528 is 825832.

It is a junction number, because it is equal to n+sod(n) for n = 238496 and 238505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238529) by changing a digit.

238528 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 as a sum of consecutive naturals, namely, 1800 + ... + 1927.

2238528 is an apocalyptic number.

It is an amenable number.

238528 is a deficient number, since it is larger than the sum of its proper divisors (234928).

238528 is an equidigital number, since it uses as much as digits as its factorization.

238528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739 (or 3729 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 238528 is about 488.3932841471. The cubic root of 238528 is about 62.0173381964.

The spelling of 238528 in words is "two hundred thirty-eight thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 3727 7454 14908 29816 59632 119264 238528