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20110000001200 = 245299735041111
BaseRepresentation
bin1001001001010001110010…
…11010000001000010110000
32122012111102110212112200021
410210220321122001002300
510113440240000014300
6110434223443533224
74143620355425554
oct444507132010260
978174373775607
1020110000001200
11645366a80903a
12230955238a214
13b2b4987b1345
144d7487441864
1524d191e7dd1a
hex124a396810b0

20110000001200 has 60 divisors (see below), whose sum is σ = 48319129095568. Its totient is φ = 8043191827200.

The previous prime is 20110000001191. The next prime is 20110000001207. The reversal of 20110000001200 is 210000001102.

It is not an unprimeable number, because it can be changed into a prime (20110000001207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1468645 + ... + 6509755.

Almost surely, 220110000001200 is an apocalyptic number.

20110000001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110000001200 is an abundant number, since it is smaller than the sum of its proper divisors (28209129094368).

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

20110000001200 is a wasteful number, since it uses less digits than its factorization.

20110000001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051102 (or 5051091 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20110000001200 its reverse (210000001102), we get a palindrome (20320000002302).

The spelling of 20110000001200 in words is "twenty trillion, one hundred ten billion, one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 9973 19946 39892 49865 79784 99730 159568 199460 249325 398920 498650 797840 997300 1994600 3989200 5041111 10082222 20164444 25205555 40328888 50411110 80657776 100822220 126027775 201644440 252055550 403288880 504111100 1008222200 2016444400 50275000003 100550000006 201100000012 251375000015 402200000024 502750000030 804400000048 1005500000060 1256875000075 2011000000120 2513750000150 4022000000240 5027500000300 10055000000600 20110000001200