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12201200 = 2452114759
BaseRepresentation
bin101110100010…
…110011110000
3211221212220022
4232202303300
511110414300
61113303012
7205465004
oct56426360
924855808
1012201200
116983a40
124104a68
1326b275b
141898704
151110285
hexba2cf0

12201200 has 120 divisors (see below), whose sum is σ = 33212160. Its totient is φ = 4268800.

The previous prime is 12201193. The next prime is 12201229. The reversal of 12201200 is 210221.

12201200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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, 206771 + ... + 206829.

It is an arithmetic number, because the mean of its divisors is an integer number (276768).

Almost surely, 212201200 is an apocalyptic number.

12201200 is a gapful number since it is divisible by the number (10) 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 12201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16606080).

12201200 is an abundant number, since it is smaller than the sum of its proper divisors (21010960).

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

12201200 is a wasteful number, since it uses less digits than its factorization.

12201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 12201200 is about 3493.0216145910. The cubic root of 12201200 is about 230.2152993440.

Adding to 12201200 its reverse (210221), we get a palindrome (12411421).

The spelling of 12201200 in words is "twelve million, two hundred one thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 40 44 47 50 55 59 80 88 94 100 110 118 176 188 200 220 235 236 275 295 376 400 440 470 472 517 550 590 649 752 880 940 944 1034 1100 1175 1180 1298 1475 1880 2068 2200 2350 2360 2585 2596 2773 2950 3245 3760 4136 4400 4700 4720 5170 5192 5546 5900 6490 8272 9400 10340 10384 11092 11800 12925 12980 13865 16225 18800 20680 22184 23600 25850 25960 27730 30503 32450 41360 44368 51700 51920 55460 61006 64900 69325 103400 110920 122012 129800 138650 152515 206800 221840 244024 259600 277300 305030 488048 554600 610060 762575 1109200 1220120 1525150 2440240 3050300 6100600 12201200