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211131300200 = 23528999711897
BaseRepresentation
bin1100010010100001100…
…1111111100101101000
3202011222002210022202012
43010220121333211220
511424344103101300
6240554204255052
721153013304162
oct3045031774550
9664862708665
10211131300200
11815a4129857
1234b03541488
1316ba94c9042
14a30c5ad932
15575a7ec435
hex312867f968

211131300200 has 96 divisors (see below), whose sum is σ = 496935437400. Its totient is φ = 83412848640.

The previous prime is 211131300179. The next prime is 211131300223. The reversal of 211131300200 is 2003131112.

211131300200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 75791191204 + 135340108996 = 275302^2 + 367886^2 .

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 23 ways as a sum of consecutive naturals, for example, 17740652 + ... + 17752548.

Almost surely, 2211131300200 is an apocalyptic number.

211131300200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211131300200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248467718700).

211131300200 is an abundant number, since it is smaller than the sum of its proper divisors (285804137200).

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

211131300200 is a wasteful number, since it uses less digits than its factorization.

211131300200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12999 (or 12990 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211131300200 its reverse (2003131112), we get a palindrome (213134431312).

The spelling of 211131300200 in words is "two hundred eleven billion, one hundred thirty-one million, three hundred thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 89 100 178 200 356 445 712 890 997 1780 1994 2225 3560 3988 4450 4985 7976 8900 9970 11897 17800 19940 23794 24925 39880 47588 49850 59485 88733 95176 99700 118970 177466 199400 237940 297425 354932 443665 475880 594850 709864 887330 1058833 1189700 1774660 2117666 2218325 2379400 3549320 4235332 4436650 5294165 8470664 8873300 10588330 11861309 17746600 21176660 23722618 26470825 42353320 47445236 52941650 59306545 94890472 105883300 118613090 211766600 237226180 296532725 474452360 593065450 1055656501 1186130900 2111313002 2372261800 4222626004 5278282505 8445252008 10556565010 21113130020 26391412525 42226260040 52782825050 105565650100 211131300200