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518542314151 = 2831832304997
BaseRepresentation
bin1111000101110111000…
…01111100101010100111
31211120110002211212102111
413202323201330222213
531443433313023101
61034114241221451
752314650642311
oct7427341745247
91746402755374
10518542314151
1118aa04688574
12845b6931887
1339b8a82a3b4
141b151a9c7b1
15d74d912251
hex78bb87caa7

518542314151 has 4 divisors (see below), whose sum is σ = 520374619432. Its totient is φ = 516710008872.

The previous prime is 518542314149. The next prime is 518542314167. The reversal of 518542314151 is 151413245815.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 518542314151 - 21 = 518542314149 is a prime.

It is a super-2 number, since 2×5185423141512 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518542914151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916152216 + ... + 916152781.

It is an arithmetic number, because the mean of its divisors is an integer number (130093654858).

Almost surely, 2518542314151 is an apocalyptic number.

518542314151 is a deficient number, since it is larger than the sum of its proper divisors (1832305281).

518542314151 is a wasteful number, since it uses less digits than its factorization.

518542314151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832305280.

The product of its digits is 96000, while the sum is 40.

Adding to 518542314151 its reverse (151413245815), we get a palindrome (669955559966).

The spelling of 518542314151 in words is "five hundred eighteen billion, five hundred forty-two million, three hundred fourteen thousand, one hundred fifty-one".

Divisors: 1 283 1832304997 518542314151