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211200103212 = 22372794546631
BaseRepresentation
bin1100010010110010000…
…0011101001100101100
3202012010220020212201220
43010230200131030230
511430014211300322
6241005103103340
721154510154100
oct3045440351454
9665126225656
10211200103212
1181629a5254a
1234b225a1b50
1316bba838a97
14a31779d900
15576188d55c
hex312c81d32c

211200103212 has 72 divisors (see below), whose sum is σ = 580513973760. Its totient is φ = 59579039520.

The previous prime is 211200103183. The next prime is 211200103339. The reversal of 211200103212 is 212301002112.

It is a junction number, because it is equal to n+sod(n) for n = 211200103191 and 211200103200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2226864 + ... + 2319767.

It is an arithmetic number, because the mean of its divisors is an integer number (8062694080).

Almost surely, 2211200103212 is an apocalyptic number.

It is an amenable number.

211200103212 is an abundant number, since it is smaller than the sum of its proper divisors (369313870548).

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

211200103212 is a wasteful number, since it uses less digits than its factorization.

211200103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546731 (or 4546722 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 211200103212 its reverse (212301002112), we get a palindrome (423501105324).

The spelling of 211200103212 in words is "two hundred eleven billion, two hundred million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 79 84 98 147 158 196 237 294 316 474 553 588 948 1106 1659 2212 3318 3871 6636 7742 11613 15484 23226 46452 4546631 9093262 13639893 18186524 27279786 31826417 54559572 63652834 95479251 127305668 190958502 222784919 359183849 381917004 445569838 668354757 718367698 891139676 1077551547 1336709514 1436735396 2155103094 2514286943 2673419028 4310206188 5028573886 7542860829 10057147772 15085721658 17600008601 30171443316 35200017202 52800025803 70400034404 105600051606 211200103212