Search a number
-
+
538288086 = 23747389701
BaseRepresentation
bin100000000101011…
…001111111010110
31101111212212102210
4200011121333112
52100300204321
6125225214250
716224242010
oct4005317726
91344785383
10538288086
11256938896
12130331386
138769c67b
14516c11b0
15323ccb76
hex20159fd6

538288086 has 64 divisors (see below), whose sum is σ = 1261578240. Its totient is φ = 149923200.

The previous prime is 538288063. The next prime is 538288097. The reversal of 538288086 is 680882835.

538288086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 767536 + ... + 768236.

It is an arithmetic number, because the mean of its divisors is an integer number (19712160).

Almost surely, 2538288086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538288086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (630789120).

538288086 is an abundant number, since it is smaller than the sum of its proper divisors (723290154).

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

538288086 is a wasteful number, since it uses less digits than its factorization.

538288086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 538288086 is about 23201.0363130615. The cubic root of 538288086 is about 813.4638463332.

The spelling of 538288086 in words is "five hundred thirty-eight million, two hundred eighty-eight thousand, eighty-six".

Divisors: 1 2 3 6 7 14 21 42 47 94 141 282 329 389 658 701 778 987 1167 1402 1974 2103 2334 2723 4206 4907 5446 8169 9814 14721 16338 18283 29442 32947 36566 54849 65894 98841 109698 127981 197682 230629 255962 272689 383943 461258 545378 691887 767886 818067 1383774 1636134 1908823 3817646 5726469 11452938 12816383 25632766 38449149 76898298 89714681 179429362 269144043 538288086