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42310323231 = 31117557135403
BaseRepresentation
bin100111011001111001…
…000100110000011111
311001012200100010011120
4213121321010300133
51143122420320411
631234225022023
73025326546021
oct473171046037
9131180303146
1042310323231
1116a42090090
128249784913
133cb3900427
142095366011
151179747106
hex9d9e44c1f

42310323231 has 32 divisors (see below), whose sum is σ = 65279893248. Its totient is φ = 24090723840.

The previous prime is 42310323229. The next prime is 42310323239. The reversal of 42310323231 is 13232301324.

It is not a de Polignac number, because 42310323231 - 21 = 42310323229 is a prime.

It is a super-2 number, since 2×423103232312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42310323239) 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 31 ways as a sum of consecutive naturals, for example, 244776 + ... + 380178.

It is an arithmetic number, because the mean of its divisors is an integer number (2039996664).

Almost surely, 242310323231 is an apocalyptic number.

42310323231 is a deficient number, since it is larger than the sum of its proper divisors (22969570017).

42310323231 is a wasteful number, since it uses less digits than its factorization.

42310323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135991.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 42310323231 its reverse (13232301324), we get a palindrome (55542624555).

The spelling of 42310323231 in words is "forty-two billion, three hundred ten million, three hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 3 11 17 33 51 187 557 561 1671 6127 9469 18381 28407 104159 135403 312477 406209 1489433 2301851 4468299 6905553 25320361 75419471 75961083 226258413 829614181 1282131007 2488842543 3846393021 14103441077 42310323231