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82548481 = 1719125423
BaseRepresentation
bin1001110101110…
…01011100000001
312202022220020011
410322321130001
5132113022411
612105144521
72021436061
oct472713401
9182286204
1082548481
1142661994
122378b141
1314143372
14ad6b3a1
1573a8c21
hex4eb9701

82548481 has 8 divisors (see below), whose sum is σ = 87865344. Its totient is φ = 77282880.

The previous prime is 82548469. The next prime is 82548491. The reversal of 82548481 is 18484528.

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 82548481 - 219 = 82024193 is a prime.

It is a super-2 number, since 2×825484812 = 13628503430814722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82548491) 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 7 ways as a sum of consecutive naturals, for example, 9465 + ... + 15958.

It is an arithmetic number, because the mean of its divisors is an integer number (10983168).

Almost surely, 282548481 is an apocalyptic number.

It is an amenable number.

82548481 is a deficient number, since it is larger than the sum of its proper divisors (5316863).

82548481 is a wasteful number, since it uses less digits than its factorization.

82548481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25631.

The product of its digits is 81920, while the sum is 40.

The square root of 82548481 is about 9085.6194615447. The cubic root of 82548481 is about 435.4146414116.

The spelling of 82548481 in words is "eighty-two million, five hundred forty-eight thousand, four hundred eighty-one".

Divisors: 1 17 191 3247 25423 432191 4855793 82548481