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12203031200 = 255219802831
BaseRepresentation
bin10110101110101101…
…10111101010100000
31011111110011012210112
423113112313222200
5144442433444300
65334521150452
7611255024303
oct132726675240
934443135715
1012203031200
1151a2324a58
12244692b428
1311c6240729
1483a98cb3a
154b64c7e35
hex2d75b7aa0

12203031200 has 72 divisors (see below), whose sum is σ = 31358617920. Its totient is φ = 4624300800.

The previous prime is 12203031097. The next prime is 12203031221. The reversal of 12203031200 is 213030221.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 386216 + ... + 416615.

It is an arithmetic number, because the mean of its divisors is an integer number (435536360).

Almost surely, 212203031200 is an apocalyptic number.

12203031200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203031200 is an abundant number, since it is smaller than the sum of its proper divisors (19155586720).

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

12203031200 is a wasteful number, since it uses less digits than its factorization.

12203031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802870 (or 802857 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12203031200 its reverse (213030221), we get a palindrome (12416061421).

The spelling of 12203031200 in words is "twelve billion, two hundred three million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 152 160 190 200 304 380 400 475 608 760 800 950 1520 1900 3040 3800 7600 15200 802831 1605662 3211324 4014155 6422648 8028310 12845296 15253789 16056620 20070775 25690592 30507578 32113240 40141550 61015156 64226480 76268945 80283100 122030312 128452960 152537890 160566200 244060624 305075780 321132400 381344725 488121248 610151560 642264800 762689450 1220303120 1525378900 2440606240 3050757800 6101515600 12203031200