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538622860 = 22526931143
BaseRepresentation
bin100000000110101…
…011101110001100
31101112111212122211
4200012223232030
52100341412420
6125240320204
716230135016
oct4006535614
91345455584
10538622860
11257047366
12130473064
1387788b69
145176b1b6
1532446e5a
hex201abb8c

538622860 has 12 divisors (see below), whose sum is σ = 1131108048. Its totient is φ = 215449136.

The previous prime is 538622839. The next prime is 538622873. The reversal of 538622860 is 68226835.

It is a super-2 number, since 2×5386228602 = 580229170629159200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 13465552 + ... + 13465591.

It is an arithmetic number, because the mean of its divisors is an integer number (94259004).

Almost surely, 2538622860 is an apocalyptic number.

It is an amenable number.

538622860 is an abundant number, since it is smaller than the sum of its proper divisors (592485188).

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

538622860 is a wasteful number, since it uses less digits than its factorization.

538622860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26931152 (or 26931150 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 538622860 is about 23208.2498263010. The cubic root of 538622860 is about 813.6324488076.

The spelling of 538622860 in words is "five hundred thirty-eight million, six hundred twenty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 26931143 53862286 107724572 134655715 269311430 538622860