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231242542204435 = 5733492423749197
BaseRepresentation
bin110100100101000001011001…
…100101011100011000010011
31010022202120102100200211102021
4310211001121211130120103
5220302134211301020220
62135451205104232311
766464502523335436
oct6445013145343023
91108676370624367
10231242542204435
1167754458659333
1221b2842b60b697
139c05102953858
1441162ad58181d
151bb02388014aa
hexd2505995c613

231242542204435 has 32 divisors (see below), whose sum is σ = 282215094940800. Its totient is φ = 181861731007488.

The previous prime is 231242542204423. The next prime is 231242542204441. The reversal of 231242542204435 is 534402245242132.

It is a cyclic number.

It is not a de Polignac number, because 231242542204435 - 213 = 231242542196243 is a prime.

It is a super-2 number, since 2×2312425422044352 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231242542204391 and 231242542204400.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308279257 + ... + 309028453.

It is an arithmetic number, because the mean of its divisors is an integer number (8819221716900).

Almost surely, 2231242542204435 is an apocalyptic number.

231242542204435 is a deficient number, since it is larger than the sum of its proper divisors (50972552736365).

231242542204435 is a wasteful number, since it uses less digits than its factorization.

231242542204435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752047.

The product of its (nonzero) digits is 1843200, while the sum is 43.

Adding to 231242542204435 its reverse (534402245242132), we get a palindrome (765644787446567).

The spelling of 231242542204435 in words is "two hundred thirty-one trillion, two hundred forty-two billion, five hundred forty-two million, two hundred four thousand, four hundred thirty-five".

Divisors: 1 5 73 349 365 1745 2423 12115 25477 127385 176879 749197 845627 884395 3745985 4228135 54691381 61730771 261469753 273456905 308653855 1307348765 1815304331 9076521655 19087291969 95436459845 132517216163 633541211519 662586080815 3167706057595 46248508440887 231242542204435