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201287116800 = 21133527113161
BaseRepresentation
bin1011101101110110100…
…1011010100000000000
3201020120001012222211000
42323131221122200000
511244214000214200
6232245305252000
720354040156060
oct2733551324000
9636501188730
10201287116800
117840236a0a0
1233016794000
1315c9ab96153
149a5700b3a0
15538146c300
hex2edda5a800

201287116800 has 2304 divisors, whose sum is σ = 967138099200. Its totient is φ = 39813120000.

The previous prime is 201287116787. The next prime is 201287116819. The reversal of 201287116800 is 8611782102.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3299788770 + ... + 3299788830.

It is an arithmetic number, because the mean of its divisors is an integer number (419764800).

Almost surely, 2201287116800 is an apocalyptic number.

201287116800 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 201287116800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483569049600).

201287116800 is an abundant number, since it is smaller than the sum of its proper divisors (765850982400).

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

201287116800 is a wasteful number, since it uses less digits than its factorization.

201287116800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

Adding to 201287116800 its reverse (8611782102), we get a palindrome (209898898902).

The spelling of 201287116800 in words is "two hundred one billion, two hundred eighty-seven million, one hundred sixteen thousand, eight hundred".