Base | Representation |
---|---|
bin | 11110010011010… |
… | …101011101110111 |
3 | 1022102121122022101 |
4 | 132103111131313 |
5 | 2020121311033 |
6 | 122240242531 |
7 | 15412126300 |
oct | 3623253567 |
9 | 1272548271 |
10 | 508385143 |
11 | 240a74312 |
12 | 122310447 |
13 | 8142c916 |
14 | 4b7397a7 |
15 | 2e97297d |
hex | 1e4d5777 |
508385143 has 12 divisors (see below), whose sum is σ = 607372392. Its totient is φ = 423979920.
The previous prime is 508385113. The next prime is 508385149. The reversal of 508385143 is 341583805.
It is not a de Polignac number, because 508385143 - 225 = 474830711 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (508385149) 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 11 ways as a sum of consecutive naturals, for example, 138393 + ... + 142018.
It is an arithmetic number, because the mean of its divisors is an integer number (50614366).
Almost surely, 2508385143 is an apocalyptic number.
508385143 is a deficient number, since it is larger than the sum of its proper divisors (98987249).
508385143 is a wasteful number, since it uses less digits than its factorization.
508385143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 280462 (or 280455 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 37.
The square root of 508385143 is about 22547.3976990694. The cubic root of 508385143 is about 798.1128136393.
The spelling of 508385143 in words is "five hundred eight million, three hundred eighty-five thousand, one hundred forty-three".
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