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82503712 = 255989491
BaseRepresentation
bin1001110101011…
…10100000100000
312202020121211001
410322232200200
5132110104322
612104201344
72021161414
oct472564040
9182217731
1082503712
1142631295
1223769254
1314128b85
14ad58d44
15739a827
hex4eae820

82503712 has 48 divisors (see below), whose sum is σ = 167378400. Its totient is φ = 40015360.

The previous prime is 82503697. The next prime is 82503731. The reversal of 82503712 is 21730528.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167787 + ... + 168277.

It is an arithmetic number, because the mean of its divisors is an integer number (3487050).

Almost surely, 282503712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82503712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83689200).

82503712 is an abundant number, since it is smaller than the sum of its proper divisors (84874688).

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

82503712 is a wasteful number, since it uses less digits than its factorization.

82503712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 82503712 is about 9083.1553988688. The cubic root of 82503712 is about 435.3359135221.

The spelling of 82503712 in words is "eighty-two million, five hundred three thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 32 59 89 118 178 236 356 472 491 712 944 982 1424 1888 1964 2848 3928 5251 7856 10502 15712 21004 28969 42008 43699 57938 84016 87398 115876 168032 174796 231752 349592 463504 699184 927008 1398368 2578241 5156482 10312964 20625928 41251856 82503712