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575309 = 7259199
BaseRepresentation
bin10001100011101001101
31002020011202
42030131031
5121402214
620155245
74614200
oct2143515
91066152
10575309
11363269
12238b25
13171b27
1410d937
15b56de
hex8c74d

575309 has 12 divisors (see below), whose sum is σ = 684000. Its totient is φ = 482328.

The previous prime is 575303. The next prime is 575317. The reversal of 575309 is 903575.

575309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 575309 - 28 = 575053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (575303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2792 + ... + 2990.

It is an arithmetic number, because the mean of its divisors is an integer number (57000).

2575309 is an apocalyptic number.

575309 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

575309 is a deficient number, since it is larger than the sum of its proper divisors (108691).

575309 is a wasteful number, since it uses less digits than its factorization.

575309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 575309 is about 758.4912656056. The cubic root of 575309 is about 83.1700678972.

The spelling of 575309 in words is "five hundred seventy-five thousand, three hundred nine".

Divisors: 1 7 49 59 199 413 1393 2891 9751 11741 82187 575309