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275488 = 258609
BaseRepresentation
bin1000011010000100000
3111222220021
41003100200
532303423
65523224
72225113
oct1032040
9458807
10275488
11178a84
12113514
1398515
147257a
155695d
hex43420

275488 has 12 divisors (see below), whose sum is σ = 542430. Its totient is φ = 137728.

The previous prime is 275461. The next prime is 275489. The reversal of 275488 is 884572.

It can be written as a sum of positive squares in only one way, i.e., 258064 + 17424 = 508^2 + 132^2 .

It is a d-powerful number, because it can be written as 213 + 7 + 45 + 52 + 84 + 86 .

It is not an unprimeable number, because it can be changed into a prime (275489) by changing a digit.

275488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4273 + ... + 4336.

2275488 is an apocalyptic number.

It is an amenable number.

275488 is a deficient number, since it is larger than the sum of its proper divisors (266942).

275488 is an equidigital number, since it uses as much as digits as its factorization.

275488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8619 (or 8611 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 275488 is about 524.8695075921. The cubic root of 275488 is about 65.0680155891.

It can be divided in two parts, 27548 and 8, that added together give a square (27556 = 1662).

The spelling of 275488 in words is "two hundred seventy-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 32 8609 17218 34436 68872 137744 275488