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518430542 = 27191948987
BaseRepresentation
bin11110111001101…
…001111101001110
31100010112000000012
4132321221331032
52030204234132
6123235433222
715563405210
oct3671517516
91303460005
10518430542
112467055a3
12125755812
1383539046
144cbd25b0
15307a90b2
hex1ee69f4e

518430542 has 16 divisors (see below), whose sum is σ = 935514240. Its totient is φ = 210490488.

The previous prime is 518430509. The next prime is 518430551. The reversal of 518430542 is 245034815.

It is a junction number, because it is equal to n+sod(n) for n = 518430499 and 518430508.

It is a congruent number.

It is an unprimeable number.

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, 974228 + ... + 974759.

It is an arithmetic number, because the mean of its divisors is an integer number (58469640).

Almost surely, 2518430542 is an apocalyptic number.

518430542 is a deficient number, since it is larger than the sum of its proper divisors (417083698).

518430542 is a wasteful number, since it uses less digits than its factorization.

518430542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949015.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 518430542 is about 22769.0698536414. The cubic root of 518430542 is about 803.3353158854.

The spelling of 518430542 in words is "five hundred eighteen million, four hundred thirty thousand, five hundred forty-two".

Divisors: 1 2 7 14 19 38 133 266 1948987 3897974 13642909 27285818 37030753 74061506 259215271 518430542