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211312201110 = 23517939350503
BaseRepresentation
bin1100010011001100110…
…0000100110110010110
3202012102201012001010220
43010303030010312112
511430231410413420
6241024145455210
721160341034113
oct3046314046626
9665381161126
10211312201110
118168725733a
1234b54041506
1316c07b26cba
14a32861d90a
15576b632840
hex3133304d96

211312201110 has 32 divisors (see below), whose sum is σ = 509982531840. Its totient is φ = 56035114848.

The previous prime is 211312201057. The next prime is 211312201153. The reversal of 211312201110 is 11102213112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211312201110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19669882 + ... + 19680621.

It is an arithmetic number, because the mean of its divisors is an integer number (15936954120).

Almost surely, 2211312201110 is an apocalyptic number.

211312201110 is an abundant number, since it is smaller than the sum of its proper divisors (298670330730).

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

211312201110 is a wasteful number, since it uses less digits than its factorization.

211312201110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39350692.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 211312201110 its reverse (11102213112), we get a palindrome (222414414222).

The spelling of 211312201110 in words is "two hundred eleven billion, three hundred twelve million, two hundred one thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 179 358 537 895 1074 1790 2685 5370 39350503 78701006 118051509 196752515 236103018 393505030 590257545 1180515090 7043740037 14087480074 21131220111 35218700185 42262440222 70437400370 105656100555 211312201110