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231234234 = 237211127563
BaseRepresentation
bin11011100100001…
…01101010111010
3121010002220201220
431302011222322
5433143443414
634540052510
75505313200
oct1562055272
9533086656
10231234234
11109586780
1265534136
1338ba1cba
14229d3070
1515478ca9
hexdc85aba

231234234 has 96 divisors (see below), whose sum is σ = 592551936. Its totient is φ = 59482080.

The previous prime is 231234233. The next prime is 231234251. The reversal of 231234234 is 432432132.

It is a super-3 number, since 3×2312342343 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (231234233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410437 + ... + 410999.

It is an arithmetic number, because the mean of its divisors is an integer number (6172416).

Almost surely, 2231234234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231234234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296275968).

231234234 is an abundant number, since it is smaller than the sum of its proper divisors (361317702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231234234 is a wasteful number, since it uses less digits than its factorization.

231234234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 713 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 231234234 is about 15206.3879340230. The cubic root of 231234234 is about 613.7865636924.

Adding to 231234234 its reverse (432432132), we get a palindrome (663666366).

The spelling of 231234234 in words is "two hundred thirty-one million, two hundred thirty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 127 147 154 231 254 294 381 462 539 563 762 889 1078 1126 1397 1617 1689 1778 2667 2794 3234 3378 3941 4191 5334 6193 6223 7882 8382 9779 11823 12386 12446 18579 18669 19558 23646 27587 29337 37158 37338 43351 55174 58674 68453 71501 82761 86702 130053 136906 143002 165522 205359 214503 260106 303457 410718 429006 500507 606914 786511 910371 1001014 1501521 1573022 1820742 2359533 3003042 3503549 4719066 5505577 7007098 10510647 11011154 16516731 21021294 33033462 38539039 77078078 115617117 231234234