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331200220220 = 225971732394129
BaseRepresentation
bin1001101000111010001…
…00100100110000111100
31011122212220122102201222
410310131010210300330
520411244224021340
6412052402052512
732633310264452
oct4643504446074
91148786572658
10331200220220
11118508987571
125423234a138
1325302a6448c
141205cb369d2
1589368688b5
hex4d1d124c3c

331200220220 has 96 divisors (see below), whose sum is σ = 709881580800. Its totient is φ = 129779564544.

The previous prime is 331200220213. The next prime is 331200220231. The reversal of 331200220220 is 22022002133.

It is a congruent number.

It is an unprimeable number.

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, 80211116 + ... + 80215244.

It is an arithmetic number, because the mean of its divisors is an integer number (7394599800).

Almost surely, 2331200220220 is an apocalyptic number.

It is an amenable number.

331200220220 is an abundant number, since it is smaller than the sum of its proper divisors (378681360580).

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

331200220220 is a wasteful number, since it uses less digits than its factorization.

331200220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4645 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 331200220220 its reverse (22022002133), we get a palindrome (353222222353).

The spelling of 331200220220 in words is "three hundred thirty-one billion, two hundred million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 97 173 194 239 346 388 478 485 692 865 956 970 1195 1730 1940 2390 3460 4129 4780 8258 16516 16781 20645 23183 33562 41290 41347 46366 67124 82580 82694 83905 92732 115915 165388 167810 206735 231830 335620 400513 413470 463660 714317 801026 826940 986831 1428634 1602052 1973662 2002565 2857268 3571585 3947324 4005130 4010659 4934155 7143170 8010260 8021318 9868310 14286340 16042636 19736620 20053295 40106590 69288749 80213180 95722607 138577498 170721763 191445214 277154996 341443526 346443745 382890428 478613035 682887052 692887490 853608815 957226070 1385774980 1707217630 1914452140 3414435260 16560011011 33120022022 66240044044 82800055055 165600110110 331200220220