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2012020001200 = 2452112571779289
BaseRepresentation
bin11101010001110101101…
…111001100100110110000
321010100101010121011210201
4131101311233030212300
5230431104110014300
64140150443204544
7265235505554236
oct35216557144660
97110333534721
102012020001200
11706324923680
12285b39516754
1311796a8aca11
146d54cdd6956
153750d39e66a
hex1d475bcc9b0

2012020001200 has 120 divisors (see below), whose sum is σ = 5293843248240. Its totient is φ = 728796364800.

The previous prime is 2012020001161. The next prime is 2012020001213. The reversal of 2012020001200 is 21000202102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241156 + ... + 2020444.

It is an arithmetic number, because the mean of its divisors is an integer number (44115360402).

Almost surely, 22012020001200 is an apocalyptic number.

2012020001200 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 2012020001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2646921624120).

2012020001200 is an abundant number, since it is smaller than the sum of its proper divisors (3281823247040).

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

2012020001200 is a wasteful number, since it uses less digits than its factorization.

2012020001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779575 (or 1779564 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2012020001200 its reverse (21000202102), we get a palindrome (2033020203302).

The spelling of 2012020001200 in words is "two trillion, twelve billion, twenty million, one thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 40 44 50 55 80 88 100 110 176 200 220 257 275 400 440 514 550 880 1028 1100 1285 2056 2200 2570 2827 4112 4400 5140 5654 6425 10280 11308 12850 14135 20560 22616 25700 28270 45232 51400 56540 70675 102800 113080 141350 226160 282700 565400 1130800 1779289 3558578 7117156 8896445 14234312 17792890 19572179 28468624 35585780 39144358 44482225 71171560 78288716 88964450 97860895 142343120 156577432 177928900 195721790 313154864 355857800 391443580 457277273 489304475 711715600 782887160 914554546 978608950 1565774320 1829109092 1957217900 2286386365 3658218184 3914435800 4572772730 5030050003 7316436368 7828871600 9145545460 10060100006 11431931825 18291090920 20120200012 22863863650 25150250015 36582181840 40240400024 45727727300 50300500030 80480800048 91455454600 100601000060 125751250075 182910909200 201202000120 251502500150 402404000240 503005000300 1006010000600 2012020001200