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82287200 = 2552102859
BaseRepresentation
bin1001110011110…
…01101001100000
312201211121211002
410321321221200
5132031142300
612055411132
72016300242
oct471715140
9181747732
1082287200
11424a3656
1223683aa8
1314081468
14ad00092
1573565d5
hex4e79a60

82287200 has 36 divisors (see below), whose sum is σ = 200885580. Its totient is φ = 32914560.

The previous prime is 82287143. The next prime is 82287209. The reversal of 82287200 is 278228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82287209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50630 + ... + 52229.

It is an arithmetic number, because the mean of its divisors is an integer number (5580155).

Almost surely, 282287200 is an apocalyptic number.

82287200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82287200 is an abundant number, since it is smaller than the sum of its proper divisors (118598380).

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

82287200 is a wasteful number, since it uses less digits than its factorization.

82287200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102879 (or 102866 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 82287200 is about 9071.2292441543. The cubic root of 82287200 is about 434.9547669530.

The spelling of 82287200 in words is "eighty-two million, two hundred eighty-seven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 102859 205718 411436 514295 822872 1028590 1645744 2057180 2571475 3291488 4114360 5142950 8228720 10285900 16457440 20571800 41143600 82287200