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538992 = 243219197
BaseRepresentation
bin10000011100101110000
31000101100200
42003211300
5114221432
615315200
74403256
oct2034560
91011320
10538992
11338a53
1221bb00
1315b43c
141005d6
15a9a7c
hex83970

538992 has 60 divisors (see below), whose sum is σ = 1595880. Its totient is φ = 169344.

The previous prime is 538987. The next prime is 539003. The reversal of 538992 is 299835.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 53 + 312 + 93 + 8 + 94 + 27 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 538992.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2638 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (26598).

2538992 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 538992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797940).

538992 is an abundant number, since it is smaller than the sum of its proper divisors (1056888).

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

538992 is a wasteful number, since it uses less digits than its factorization.

538992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 221 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 538992 is about 734.1607453412. The cubic root of 538992 is about 81.3818278088.

It can be divided in two parts, 53 and 8992, that added together give a triangular number (9045 = T134).

The spelling of 538992 in words is "five hundred thirty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 36 38 48 57 72 76 114 144 152 171 197 228 304 342 394 456 591 684 788 912 1182 1368 1576 1773 2364 2736 3152 3546 3743 4728 7092 7486 9456 11229 14184 14972 22458 28368 29944 33687 44916 59888 67374 89832 134748 179664 269496 538992