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518425071 = 3434018799
BaseRepresentation
bin11110111001101…
…000100111101111
31100010111201111120
4132321220213233
52030204100241
6123235352023
715563353233
oct3671504757
91303451446
10518425071
1124670147a
12125752613
13835366c8
144cbd05c3
15307a7666
hex1ee689ef

518425071 has 8 divisors (see below), whose sum is σ = 707308800. Its totient is φ = 337579032.

The previous prime is 518425043. The next prime is 518425073. The reversal of 518425071 is 170524815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 518425071 - 26 = 518425007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518425073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009271 + ... + 2009528.

It is an arithmetic number, because the mean of its divisors is an integer number (88413600).

Almost surely, 2518425071 is an apocalyptic number.

518425071 is a deficient number, since it is larger than the sum of its proper divisors (188883729).

518425071 is a wasteful number, since it uses less digits than its factorization.

518425071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018845.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 518425071 is about 22768.9497122726. The cubic root of 518425071 is about 803.3324900083.

Adding to 518425071 its reverse (170524815), we get a palindrome (688949886).

The spelling of 518425071 in words is "five hundred eighteen million, four hundred twenty-five thousand, seventy-one".

Divisors: 1 3 43 129 4018799 12056397 172808357 518425071