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538367478 = 231121275839
BaseRepresentation
bin100000000101101…
…101010111110110
31101112000220100020
4200011231113312
52100310224403
6125231030010
716225022325
oct4005552766
91345026306
10538367478
11256992500
1213036b306
13876c984c
14517020bc
15323e6453
hex2016d5f6

538367478 has 48 divisors (see below), whose sum is σ = 1193041920. Its totient is φ = 161829360.

The previous prime is 538367477. The next prime is 538367521. The reversal of 538367478 is 874763835.

538367478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 538367478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538367477) 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, 89283 + ... + 95121.

It is an arithmetic number, because the mean of its divisors is an integer number (24855040).

Almost surely, 2538367478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538367478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596520960).

538367478 is an abundant number, since it is smaller than the sum of its proper divisors (654674442).

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

538367478 is a wasteful number, since it uses less digits than its factorization.

538367478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5993 (or 5982 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The square root of 538367478 is about 23202.7472080355. The cubic root of 538367478 is about 813.5038369061.

The spelling of 538367478 in words is "five hundred thirty-eight million, three hundred sixty-seven thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 121 127 242 254 363 381 726 762 1397 2794 4191 5839 8382 11678 15367 17517 30734 35034 46101 64229 92202 128458 192687 385374 706519 741553 1413038 1483106 2119557 2224659 4239114 4449318 8157083 16314166 24471249 48942498 89727913 179455826 269183739 538367478