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538356 = 2237131729
BaseRepresentation
bin10000011011011110100
31000100111010
42003123310
5114211411
615312220
74401360
oct2033364
91010433
10538356
11338525
1221b670
1315b070
141002a0
15a97a6
hex836f4

538356 has 96 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 129024.

The previous prime is 538333. The next prime is 538357. The reversal of 538356 is 653835.

538356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 5 + 38 + 312 + 8 + 53 + 63 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538357) by changing a digit.

538356 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 in 31 ways as a sum of consecutive naturals, for example, 18550 + ... + 18578.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2538356 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 538356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846720).

538356 is an abundant number, since it is smaller than the sum of its proper divisors (1155084).

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

538356 is a wasteful number, since it uses less digits than its factorization.

538356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 71 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 538356 is about 733.7274698415. The cubic root of 538356 is about 81.3498055562.

The spelling of 538356 in words is "five hundred thirty-eight thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 7 12 13 14 17 21 26 28 29 34 39 42 51 52 58 68 78 84 87 91 102 116 119 156 174 182 203 204 221 238 273 348 357 364 377 406 442 476 493 546 609 663 714 754 812 884 986 1092 1131 1218 1326 1428 1479 1508 1547 1972 2262 2436 2639 2652 2958 3094 3451 4524 4641 5278 5916 6188 6409 6902 7917 9282 10353 10556 12818 13804 15834 18564 19227 20706 25636 31668 38454 41412 44863 76908 89726 134589 179452 269178 538356