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518114141 = 1587732633
BaseRepresentation
bin11110111000011…
…100101101011101
31100002220220222122
4132320130231131
52030114123031
6123224552325
715560616566
oct3670345535
91302826878
10518114141
11246509906
121256226a5
138345801c
144cb4d16d
153074547b
hex1ee1cb5d

518114141 has 4 divisors (see below), whose sum is σ = 518162652. Its totient is φ = 518065632.

The previous prime is 518114119. The next prime is 518114147. The reversal of 518114141 is 141411815.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 141411815 = 528282363.

It can be written as a sum of positive squares in 2 ways, for example, as 472888516 + 45225625 = 21746^2 + 6725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-518114141 is a prime.

It is a Duffinian number.

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 518114141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518114147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 32193.

It is an arithmetic number, because the mean of its divisors is an integer number (129540663).

Almost surely, 2518114141 is an apocalyptic number.

It is an amenable number.

518114141 is a deficient number, since it is larger than the sum of its proper divisors (48511).

518114141 is a wasteful number, since it uses less digits than its factorization.

518114141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48510.

The product of its digits is 640, while the sum is 26.

The square root of 518114141 is about 22762.1207491745. The cubic root of 518114141 is about 803.1718559792.

Adding to 518114141 its reverse (141411815), we get a palindrome (659525956).

The spelling of 518114141 in words is "five hundred eighteen million, one hundred fourteen thousand, one hundred forty-one".

Divisors: 1 15877 32633 518114141