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212020330230 = 23252928333749
BaseRepresentation
bin1100010101110101100…
…1010111111011110110
3202021021001122201200100
43011131121113323312
511433204201031410
6241222323254530
721214030033362
oct3053531277366
9667231581610
10212020330230
1181a0aa49215
123511121a446
1316cbb751507
14a3946b22a2
1557ad8ad8c0
hex315d657ef6

212020330230 has 144 divisors (see below), whose sum is σ = 577812690000. Its totient is φ = 53929843968.

The previous prime is 212020330199. The next prime is 212020330243. The reversal of 212020330230 is 32033020212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6265396 + ... + 6299144.

It is an arithmetic number, because the mean of its divisors is an integer number (4012588125).

Almost surely, 2212020330230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212020330230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288906345000).

212020330230 is an abundant number, since it is smaller than the sum of its proper divisors (365792359770).

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

212020330230 is a wasteful number, since it uses less digits than its factorization.

212020330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33903 (or 33871 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 212020330230 its reverse (32033020212), we get a palindrome (244053350442).

The spelling of 212020330230 in words is "two hundred twelve billion, twenty million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 29 30 45 58 83 87 90 145 166 174 249 261 290 415 435 498 522 747 830 841 870 1245 1305 1494 1682 2407 2490 2523 2610 3735 4205 4814 5046 7221 7470 7569 8410 12035 12615 14442 15138 21663 24070 25230 33749 36105 37845 43326 67498 69803 72210 75690 101247 108315 139606 168745 202494 209409 216630 303741 337490 349015 418818 506235 607482 628227 698030 978721 1012470 1047045 1256454 1518705 1957442 2094090 2801167 2936163 3037410 3141135 4893605 5602334 5872326 6282270 8403501 8808489 9787210 14005835 14680815 16807002 17616978 25210503 28011670 28382909 29361630 42017505 44042445 50421006 56765818 81233843 84035010 85148727 88084890 126052515 141914545 162467686 170297454 243701529 252105030 255446181 283829090 406169215 425743635 487403058 510892362 731104587 812338430 851487270 1218507645 1277230905 1462209174 2355781447 2437015290 2554461810 3655522935 4711562894 7067344341 7311045870 11778907235 14134688682 21202033023 23557814470 35336721705 42404066046 70673443410 106010165115 212020330230