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82037444 = 22171206433
BaseRepresentation
bin1001110001111…
…00101011000100
312201100221012212
410320330223010
5132000144234
612050202552
72014210136
oct470745304
9181327185
1082037444
1142342a45
1223583458
1313cc4888
14ac77056
1573075ce
hex4e3cac4

82037444 has 12 divisors (see below), whose sum is σ = 152010684. Its totient is φ = 38605824.

The previous prime is 82037443. The next prime is 82037477. The reversal of 82037444 is 44473028.

It can be written as a sum of positive squares in 2 ways, for example, as 59474944 + 22562500 = 7712^2 + 4750^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82037444.

It is not an unprimeable number, because it can be changed into a prime (82037443) 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 3 ways as a sum of consecutive naturals, for example, 603149 + ... + 603284.

It is an arithmetic number, because the mean of its divisors is an integer number (12667557).

Almost surely, 282037444 is an apocalyptic number.

It is an amenable number.

82037444 is a deficient number, since it is larger than the sum of its proper divisors (69973240).

82037444 is a wasteful number, since it uses less digits than its factorization.

82037444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206454 (or 1206452 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 82037444 is about 9057.4524011998. The cubic root of 82037444 is about 434.5142664671.

The spelling of 82037444 in words is "eighty-two million, thirty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 17 34 68 1206433 2412866 4825732 20509361 41018722 82037444