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538245 = 355443
BaseRepresentation
bin10000011011010000101
31000100100000
42003122011
5114210440
615311513
74401141
oct2033205
91010300
10538245
11338434
1221b599
1315acb6
14100221
15a9730
hex83685

538245 has 24 divisors (see below), whose sum is σ = 969696. Its totient is φ = 286416.

The previous prime is 538201. The next prime is 538247. The reversal of 538245 is 542835.

It is not a de Polignac number, because 538245 - 27 = 538117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 52 + 311 + 218 + 85 + 48 + 54 .

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994 + ... + 1436.

It is an arithmetic number, because the mean of its divisors is an integer number (40404).

2538245 is an apocalyptic number.

It is an amenable number.

538245 is a deficient number, since it is larger than the sum of its proper divisors (431451).

538245 is an equidigital number, since it uses as much as digits as its factorization.

538245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 451 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 538245 is about 733.6518247779. The cubic root of 538245 is about 81.3442141823.

The spelling of 538245 in words is "five hundred thirty-eight thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 443 1215 1329 2215 3987 6645 11961 19935 35883 59805 107649 179415 538245