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518224113 = 321129180503
BaseRepresentation
bin11110111000110…
…111100011110001
31100010010111211200
4132320313203301
52030131132423
6123231201413
715561555321
oct3670674361
91303114750
10518224113
112465844a0
12125676269
13834960b4
144cb7b281
1530767d43
hex1ee378f1

518224113 has 24 divisors (see below), whose sum is σ = 844758720. Its totient is φ = 303243360.

The previous prime is 518224111. The next prime is 518224123. The reversal of 518224113 is 311422815.

It is not a de Polignac number, because 518224113 - 21 = 518224111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (518224111) 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, 87381 + ... + 93122.

It is an arithmetic number, because the mean of its divisors is an integer number (35198280).

Almost surely, 2518224113 is an apocalyptic number.

It is an amenable number.

518224113 is a deficient number, since it is larger than the sum of its proper divisors (326534607).

518224113 is a wasteful number, since it uses less digits than its factorization.

518224113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180549 (or 180546 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 518224113 is about 22764.5363010100. The cubic root of 518224113 is about 803.2286775429.

Adding to 518224113 its reverse (311422815), we get a palindrome (829646928).

The spelling of 518224113 in words is "five hundred eighteen million, two hundred twenty-four thousand, one hundred thirteen".

Divisors: 1 3 9 11 29 33 87 99 261 319 957 2871 180503 541509 1624527 1985533 5234587 5956599 15703761 17869797 47111283 57580457 172741371 518224113