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28541200 = 245271353
BaseRepresentation
bin110110011100…
…0000100010000
31222201001011111
41230320010100
524301304300
62455423104
7464411332
oct154700420
958631144
1028541200
1115124476
129684a94
135bb3cac
143b0d452
15278b9ba
hex1b38110

28541200 has 30 divisors (see below), whose sum is σ = 68571194. Its totient is φ = 11416320.

The previous prime is 28541167. The next prime is 28541203. The reversal of 28541200 is 214582.

It can be written as a sum of positive squares in 3 ways, for example, as 9461776 + 19079424 = 3076^2 + 4368^2 .

It is not an unprimeable number, because it can be changed into a prime (28541203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35277 + ... + 36076.

Almost surely, 228541200 is an apocalyptic number.

28541200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28541200 is an abundant number, since it is smaller than the sum of its proper divisors (40029994).

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

28541200 is a wasteful number, since it uses less digits than its factorization.

28541200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71371 (or 71360 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 28541200 is about 5342.3964660066. The cubic root of 28541200 is about 305.6028567115.

Adding to 28541200 its reverse (214582), we get a palindrome (28755782).

The spelling of 28541200 in words is "twenty-eight million, five hundred forty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 71353 142706 285412 356765 570824 713530 1141648 1427060 1783825 2854120 3567650 5708240 7135300 14270600 28541200