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212101203200 = 285267494639
BaseRepresentation
bin1100010110001000110…
…1111000010100000000
3202021110200211111112112
43011202031320110000
511433340402000300
6241234332514452
721216031323545
oct3054215702400
9667420744475
10212101203200
1181a51666287
123513431ba28
1317002429043
14a3a1324bcc
1557b5a35e35
hex3162378500

212101203200 has 108 divisors (see below), whose sum is σ = 532820272320. Its totient is φ = 83574036480.

The previous prime is 212101203151. The next prime is 212101203221. The reversal of 212101203200 is 2302101212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181481 + ... + 676119.

It is an arithmetic number, because the mean of its divisors is an integer number (4933521040).

Almost surely, 2212101203200 is an apocalyptic number.

212101203200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212101203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266410136160).

212101203200 is an abundant number, since it is smaller than the sum of its proper divisors (320719069120).

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

212101203200 is an equidigital number, since it uses as much as digits as its factorization.

212101203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494732 (or 494713 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212101203200 its reverse (2302101212), we get a palindrome (214403304412).

The spelling of 212101203200 in words is "two hundred twelve billion, one hundred one million, two hundred three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 67 80 100 128 134 160 200 256 268 320 335 400 536 640 670 800 1072 1280 1340 1600 1675 2144 2680 3200 3350 4288 5360 6400 6700 8576 10720 13400 17152 21440 26800 42880 53600 85760 107200 214400 428800 494639 989278 1978556 2473195 3957112 4946390 7914224 9892780 12365975 15828448 19785560 24731950 31656896 33140813 39571120 49463900 63313792 66281626 79142240 98927800 126627584 132563252 158284480 165704065 197855600 265126504 316568960 331408130 395711200 530253008 633137920 662816260 791422400 828520325 1060506016 1325632520 1582844800 1657040650 2121012032 2651265040 3165689600 3314081300 4242024064 5302530080 6628162600 8484048128 10605060160 13256325200 21210120320 26512650400 42420240640 53025300800 106050601600 212101203200