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538244 = 22747409
BaseRepresentation
bin10000011011010000100
31000100022222
42003122010
5114210434
615311512
74401140
oct2033204
91010288
10538244
11338433
1221b598
1315acb5
14100220
15a972e
hex83684

538244 has 24 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 225216.

The previous prime is 538201. The next prime is 538247. The reversal of 538244 is 442835.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538244.

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

538244 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112 + ... + 1520.

It is an arithmetic number, because the mean of its divisors is an integer number (45920).

2538244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551040).

538244 is an abundant number, since it is smaller than the sum of its proper divisors (563836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538244 is a wasteful number, since it uses less digits than its factorization.

538244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 465 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 538244 is about 733.6511432554. The cubic root of 538244 is about 81.3441638060.

It can be divided in two parts, 53824 and 4, that multiplied together give a square (215296 = 4642).

The spelling of 538244 in words is "five hundred thirty-eight thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 47 94 188 329 409 658 818 1316 1636 2863 5726 11452 19223 38446 76892 134561 269122 538244