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82538441 = 253132611
BaseRepresentation
bin1001110101101…
…10111111001001
312202022101110022
410322312333021
5132112212231
612105030225
72021364566
oct472667711
9182271408
1082538441
1142655397
1223785375
131413b91b
14ad6786d
1573a5c7b
hex4eb6fc9

82538441 has 4 divisors (see below), whose sum is σ = 82573584. Its totient is φ = 82503300.

The previous prime is 82538389. The next prime is 82538447. The reversal of 82538441 is 14483528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82538441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82538447) 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 3 ways as a sum of consecutive naturals, for example, 13775 + ... + 18836.

It is an arithmetic number, because the mean of its divisors is an integer number (20643396).

Almost surely, 282538441 is an apocalyptic number.

It is an amenable number.

82538441 is a deficient number, since it is larger than the sum of its proper divisors (35143).

82538441 is a wasteful number, since it uses less digits than its factorization.

82538441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35142.

The product of its digits is 30720, while the sum is 35.

The square root of 82538441 is about 9085.0669232538. The cubic root of 82538441 is about 435.3969881885.

The spelling of 82538441 in words is "eighty-two million, five hundred thirty-eight thousand, four hundred forty-one".

Divisors: 1 2531 32611 82538441