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82528219 = 792114951
BaseRepresentation
bin1001110101101…
…00011111011011
312202021212102201
410322310133123
5132111400334
612104511031
72021323024
oct472643733
9182255381
1082528219
1142648744
122377b477
1314137087
14ad63c4b
1573a2c14
hex4eb47db

82528219 has 8 divisors (see below), whose sum is σ = 83985920. Its totient is φ = 81081000.

The previous prime is 82528213. The next prime is 82528247. The reversal of 82528219 is 91282528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82528219 - 219 = 82003931 is a prime.

It is a super-2 number, since 2×825282192 = 13621813862623922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82528213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14194 + ... + 19144.

It is an arithmetic number, because the mean of its divisors is an integer number (10498240).

Almost surely, 282528219 is an apocalyptic number.

82528219 is a deficient number, since it is larger than the sum of its proper divisors (1457701).

82528219 is a wasteful number, since it uses less digits than its factorization.

82528219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241.

The product of its digits is 23040, while the sum is 37.

The square root of 82528219 is about 9084.5043343047. The cubic root of 82528219 is about 435.3790134861.

It can be divided in two parts, 8252 and 8219, that added together give a triangular number (16471 = T181).

The spelling of 82528219 in words is "eighty-two million, five hundred twenty-eight thousand, two hundred nineteen".

Divisors: 1 79 211 4951 16669 391129 1044661 82528219