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5263431018 = 234718664649
BaseRepresentation
bin1001110011011100…
…11001010101101010
3111120211001222222120
410321232121111222
541234414243033
62230141332110
7244301265636
oct47156312552
914524058876
105263431018
11226108469a
12102a867036
1365b5c4731
1437d075dc6
1520c1401b3
hex139b9956a

5263431018 has 16 divisors (see below), whose sum is σ = 10750838400. Its totient is φ = 1717147616.

The previous prime is 5263430969. The next prime is 5263431029. The reversal of 5263431018 is 8101343625.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5263431018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9332043 + ... + 9332606.

It is an arithmetic number, because the mean of its divisors is an integer number (671927400).

Almost surely, 25263431018 is an apocalyptic number.

5263431018 is an abundant number, since it is smaller than the sum of its proper divisors (5487407382).

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

5263431018 is a wasteful number, since it uses less digits than its factorization.

5263431018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18664701.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 5263431018 is about 72549.5073587685. The cubic root of 5263431018 is about 1739.4941738825.

The spelling of 5263431018 in words is "five billion, two hundred sixty-three million, four hundred thirty-one thousand, eighteen".

Divisors: 1 2 3 6 47 94 141 282 18664649 37329298 55993947 111987894 877238503 1754477006 2631715509 5263431018