Search a number
-
+
20304031322330 = 2572536471208387
BaseRepresentation
bin1001001110111011001101…
…00100110001000011011010
32122220001020212000221000022
410213131212210301003122
510130130124004303310
6111103313200310442
74163626552434500
oct447354644610332
978801225027008
1020304031322330
1165189893a1488
12233b083012422
13b4387b37cb72
14502a12948670
1525324b405a55
hex1277669310da

20304031322330 has 96 divisors (see below), whose sum is σ = 43383294631296. Its totient is φ = 6819473222016.

The previous prime is 20304031322303. The next prime is 20304031322353. The reversal of 20304031322330 is 3322313040302.

It is a self number, because there is not a number n which added to its sum of digits gives 20304031322330.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16198397 + ... + 17406783.

It is an arithmetic number, because the mean of its divisors is an integer number (451909319076).

Almost surely, 220304031322330 is an apocalyptic number.

20304031322330 is an abundant number, since it is smaller than the sum of its proper divisors (23079263308966).

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

20304031322330 is a wasteful number, since it uses less digits than its factorization.

20304031322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209108 (or 1209101 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20304031322330 its reverse (3322313040302), we get a palindrome (23626344362632).

The spelling of 20304031322330 in words is "twenty trillion, three hundred four billion, thirty-one million, three hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 53 70 98 106 245 265 371 490 530 647 742 1294 1855 2597 3235 3710 4529 5194 6470 9058 12985 22645 25970 31703 34291 45290 63406 68582 158515 171455 240037 317030 342910 480074 1200185 1208387 1680259 2400370 2416774 3360518 6041935 8401295 8458709 12083870 16802590 16917418 42293545 59210963 64044511 84587090 118421926 128089022 296054815 320222555 448311577 592109630 640445110 781826389 896623154 1563652778 2241557885 3138181039 3909131945 4483115770 5472784723 6276362078 7818263890 10945569446 15690905195 27363923615 31381810390 38309493061 41436798617 54727847230 76618986122 82873597234 191547465305 207183993085 290057590319 383094930610 414367986170 580115180638 1450287951595 2030403132233 2900575903190 4060806264466 10152015661165 20304031322330