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506235081 = 311279127139
BaseRepresentation
bin11110001011001…
…000100011001001
31022021120101222110
4132023020203021
52014044010311
6122122212533
715354633012
oct3613104311
91267511873
10506235081
1123a835a00
12121654149
1380b590b1
144b33a009
152e69a8a6
hex1e2c88c9

506235081 has 48 divisors (see below), whose sum is σ = 762675200. Its totient is φ = 298378080.

The previous prime is 506235017. The next prime is 506235089. The reversal of 506235081 is 180532605.

It is not a de Polignac number, because 506235081 - 26 = 506235017 is a prime.

It is a super-2 number, since 2×5062350812 = 512547914470153122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (506235089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3641910 + ... + 3642048.

Almost surely, 2506235081 is an apocalyptic number.

It is an amenable number.

506235081 is a deficient number, since it is larger than the sum of its proper divisors (256440119).

506235081 is a wasteful number, since it uses less digits than its factorization.

506235081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 506235081 is about 22499.6684642241. The cubic root of 506235081 is about 796.9860977714.

Adding to 506235081 its reverse (180532605), we get a palindrome (686767686).

The spelling of 506235081 in words is "five hundred six million, two hundred thirty-five thousand, eighty-one".

Divisors: 1 3 11 33 79 121 127 139 237 363 381 417 869 1397 1529 2607 4191 4587 9559 10033 10981 15367 16819 17653 28677 30099 32943 46101 50457 52959 110363 120791 194183 331089 362373 582549 1213993 1328701 1394587 2136013 3641979 3986103 4183761 6408039 15340457 46021371 168745027 506235081