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211243121110 = 25722313532551
BaseRepresentation
bin1100010010111100010…
…0100011100111010110
3202012020220012102012101
43010233010203213112
511430111214333420
6241013241112314
721155541621520
oct3045704434726
9665226172171
10211243121110
118165126452a
1234b34a8869a
1316bc671b168
14a31d39aa10
15576553960a
hex312f1239d6

211243121110 has 32 divisors (see below), whose sum is σ = 436505997312. Its totient is φ = 72101426400.

The previous prime is 211243121107. The next prime is 211243121183. The reversal of 211243121110 is 11121342112.

211243121110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6750666 + ... + 6781885.

It is an arithmetic number, because the mean of its divisors is an integer number (13640812416).

Almost surely, 2211243121110 is an apocalyptic number.

211243121110 is an abundant number, since it is smaller than the sum of its proper divisors (225262876202).

211243121110 is a wasteful number, since it uses less digits than its factorization.

211243121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532788.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211243121110 its reverse (11121342112), we get a palindrome (222364463222).

The spelling of 211243121110 in words is "two hundred eleven billion, two hundred forty-three million, one hundred twenty-one thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 223 446 1115 1561 2230 3122 7805 15610 13532551 27065102 67662755 94727857 135325510 189455714 473639285 947278570 3017758873 6035517746 15088794365 21124312111 30177588730 42248624222 105621560555 211243121110