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211232231130 = 23547635323581
BaseRepresentation
bin1100010010111001101…
…1000000111011011010
3202012020010201010221210
43010232123000323122
511430100422344010
6241012211443550
721155350224354
oct3045633007332
9665203633853
10211232231130
11816460a6748
1234b312b65b6
1316bc43a749b
14a31bb640d4
1557645d7b20
hex312e6c0eda

211232231130 has 64 divisors (see below), whose sum is σ = 517847136768. Its totient is φ = 55119098880.

The previous prime is 211232231071. The next prime is 211232231149. The reversal of 211232231130 is 31132232112.

211232231130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211232231097 and 211232231106.

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 31 ways as a sum of consecutive naturals, for example, 8945940 + ... + 8969520.

It is an arithmetic number, because the mean of its divisors is an integer number (8091361512).

Almost surely, 2211232231130 is an apocalyptic number.

211232231130 is an abundant number, since it is smaller than the sum of its proper divisors (306614905638).

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

211232231130 is a wasteful number, since it uses less digits than its factorization.

211232231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29991.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211232231130 its reverse (31132232112), we get a palindrome (242364463242).

The spelling of 211232231130 in words is "two hundred eleven billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 6353 12706 19059 23581 31765 38118 47162 63530 70743 95295 117905 141486 190590 235810 298591 353715 597182 707430 895773 1108307 1492955 1791546 2216614 2985910 3324921 4478865 5541535 6649842 8957730 11083070 16624605 33249210 149810093 299620186 449430279 749050465 898860558 1498100930 2247151395 4494302790 7041074371 14082148742 21123223113 35205371855 42246446226 70410743710 105616115565 211232231130