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538268918 = 21159414691
BaseRepresentation
bin100000000101010…
…101010011110110
31101111211220010212
4200011111103312
52100244101133
6125224545422
716224132065
oct4005252366
91344756125
10538268918
11256925450
12130322272
1387693a25
14516b81dc
15323c7148
hex201554f6

538268918 has 16 divisors (see below), whose sum is σ = 895734720. Its totient is φ = 240520200.

The previous prime is 538268897. The next prime is 538268947. The reversal of 538268918 is 819862835.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206048 + ... + 208643.

It is an arithmetic number, because the mean of its divisors is an integer number (55983420).

Almost surely, 2538268918 is an apocalyptic number.

538268918 is a deficient number, since it is larger than the sum of its proper divisors (357465802).

538268918 is a wasteful number, since it uses less digits than its factorization.

538268918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414763.

The product of its digits is 829440, while the sum is 50.

The square root of 538268918 is about 23200.6232243877. The cubic root of 538268918 is about 813.4541906237.

The spelling of 538268918 in words is "five hundred thirty-eight million, two hundred sixty-eight thousand, nine hundred eighteen".

Divisors: 1 2 11 22 59 118 649 1298 414691 829382 4561601 9123202 24466769 48933538 269134459 538268918