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211012112312 = 231910733433881
BaseRepresentation
bin1100010010000101001…
…1010100111110111000
3202011122210111221200222
43010201103110332320
511424123100043222
6240534305515212
721150035234501
oct3044123247670
9664583457628
10211012112312
1181542922171
1234a8b642b08
1316b8a8c7971
14a2da825ba8
155750107542
hex31214d4fb8

211012112312 has 64 divisors (see below), whose sum is σ = 420597619200. Its totient is φ = 98963838720.

The previous prime is 211012112291. The next prime is 211012112347. The reversal of 211012112312 is 213211210112.

It is a happy number.

It is a super-2 number, since 2×2110121123122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54368612 + ... + 54372492.

It is an arithmetic number, because the mean of its divisors is an integer number (6571837800).

Almost surely, 2211012112312 is an apocalyptic number.

It is an amenable number.

211012112312 is a deficient number, since it is larger than the sum of its proper divisors (209585506888).

211012112312 is a wasteful number, since it uses less digits than its factorization.

211012112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356 (or 7352 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211012112312 its reverse (213211210112), we get a palindrome (424223322424).

The spelling of 211012112312 in words is "two hundred eleven billion, twelve million, one hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 19 38 76 107 152 214 428 856 2033 3343 3881 4066 6686 7762 8132 13372 15524 16264 26744 31048 63517 73739 127034 147478 254068 294956 357701 415267 508136 589912 715402 830534 1430804 1661068 2861608 3322136 6796319 7890073 12974183 13592638 15780146 25948366 27185276 31560292 51896732 54370552 63120584 103793464 246509477 493018954 986037908 1388237581 1972075816 2776475162 5552950324 11105900648 26376514039 52753028078 105506056156 211012112312