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82768276 = 22731372069
BaseRepresentation
bin1001110111011…
…11000110010100
312202202001201201
410323233012110
5132142041101
612114002244
72023342633
oct473570624
9182661651
1082768276
11427a2038
1223876384
13141bc416
14adc751a
1573ede01
hex4eef194

82768276 has 24 divisors (see below), whose sum is σ = 147971880. Its totient is φ = 40499712.

The previous prime is 82768271. The next prime is 82768307. The reversal of 82768276 is 67286728.

It can be written as a sum of positive squares in 4 ways, for example, as 6380676 + 76387600 = 2526^2 + 8740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82768271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38970 + ... + 41038.

It is an arithmetic number, because the mean of its divisors is an integer number (6165495).

Almost surely, 282768276 is an apocalyptic number.

It is an amenable number.

82768276 is a deficient number, since it is larger than the sum of its proper divisors (65203604).

82768276 is a wasteful number, since it uses less digits than its factorization.

82768276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283 (or 2281 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 82768276 is about 9097.7071836810. The cubic root of 82768276 is about 435.8007464259.

The spelling of 82768276 in words is "eighty-two million, seven hundred sixty-eight thousand, two hundred seventy-six".

Divisors: 1 2 4 73 137 146 274 292 548 2069 4138 8276 10001 20002 40004 151037 283453 302074 566906 604148 1133812 20692069 41384138 82768276