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231001323330 = 23519942191909
BaseRepresentation
bin1101011100100011000…
…0000111011101000010
3211002020212202002020210
43113020300013131002
512241042314321310
6254042012014550
722455266564601
oct3271060073502
9732225662223
10231001323330
1189a70252278
1238929a61456
1318a24c9588b
14b2754dda38
15601ee41820
hex35c8c07742

231001323330 has 64 divisors (see below), whose sum is σ = 558518688000. Its totient is φ = 61144554240.

The previous prime is 231001323313. The next prime is 231001323337. The reversal of 231001323330 is 33323100132.

It is a super-2 number, since 2×2310013233302 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231001323297 and 231001323306.

It is not an unprimeable number, because it can be changed into a prime (231001323337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2467416 + ... + 2559324.

It is an arithmetic number, because the mean of its divisors is an integer number (8726854500).

Almost surely, 2231001323330 is an apocalyptic number.

231001323330 is an abundant number, since it is smaller than the sum of its proper divisors (327517364670).

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

231001323330 is a wasteful number, since it uses less digits than its factorization.

231001323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92539.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 231001323330 its reverse (33323100132), we get a palindrome (264324423462).

The spelling of 231001323330 in words is "two hundred thirty-one billion, one million, three hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 199 398 421 597 842 995 1194 1263 1990 2105 2526 2985 4210 5970 6315 12630 83779 91909 167558 183818 251337 275727 418895 459545 502674 551454 837790 919090 1256685 1378635 2513370 2757270 18289891 36579782 38693689 54869673 77387378 91449455 109739346 116081067 182898910 193468445 232162134 274348365 386936890 548696730 580405335 1160810670 7700044111 15400088222 23100132333 38500220555 46200264666 77000441110 115500661665 231001323330