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538692 = 223711253
BaseRepresentation
bin10000011100001000100
31000100221120
42003201010
5114214232
615313540
74402350
oct2034104
91010846
10538692
11338800
1221b8b0
1315b26b
14100460
15a992c
hex83844

538692 has 72 divisors (see below), whose sum is σ = 1608768. Its totient is φ = 137280.

The previous prime is 538651. The next prime is 538697. The reversal of 538692 is 296835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538697) 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, 10138 + ... + 10190.

It is an arithmetic number, because the mean of its divisors is an integer number (22344).

2538692 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 538692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804384).

538692 is an abundant number, since it is smaller than the sum of its proper divisors (1070076).

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

538692 is a wasteful number, since it uses less digits than its factorization.

538692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 76 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 538692 is about 733.9564019749. The cubic root of 538692 is about 81.3667261132.

The spelling of 538692 in words is "five hundred thirty-eight thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 53 66 77 84 106 121 132 154 159 212 231 242 308 318 363 371 462 484 583 636 726 742 847 924 1113 1166 1452 1484 1694 1749 2226 2332 2541 3388 3498 4081 4452 5082 6413 6996 8162 10164 12243 12826 16324 19239 24486 25652 38478 44891 48972 76956 89782 134673 179564 269346 538692