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211100110101100 = 225211217446290091
BaseRepresentation
bin101111111111111010010011…
…000100110001101001101100
31000200102222021122002210110001
4233333322103010301221230
5210132131011141213400
62024550015103554044
762315323343362123
oct5777722304615154
91020388248083401
10211100110101100
1161299065868a00
121b8147478bb924
1390a3868c61a3c
143a1b42aabaaba
1519612e9480a6a
hexbffe93131a6c

211100110101100 has 54 divisors (see below), whose sum is σ = 503517378345212. Its totient is φ = 76763676396000.

The previous prime is 211100110101061. The next prime is 211100110101121. The reversal of 211100110101100 is 1101011001112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8723132946 + ... + 8723157145.

Almost surely, 2211100110101100 is an apocalyptic number.

211100110101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211100110101100 is an abundant number, since it is smaller than the sum of its proper divisors (292417268244112).

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

211100110101100 is a wasteful number, since it uses less digits than its factorization.

211100110101100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446290127 (or 17446290109 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 211100110101100 its reverse (1101011001112), we get a palindrome (212201121102212).

The spelling of 211100110101100 in words is "two hundred eleven trillion, one hundred billion, one hundred ten million, one hundred one thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1100 1210 2420 3025 6050 12100 17446290091 34892580182 69785160364 87231450455 174462900910 191909191001 348925801820 383818382002 436157252275 767636764004 872314504550 959545955005 1744629009100 1919091910010 2111001101011 3838183820020 4222002202022 4797729775025 8444004404044 9595459550050 10555005505055 19190919100100 21110011010110 42220022020220 52775027525275 105550055050550 211100110101100