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82015461 = 32111376047
BaseRepresentation
bin1001110001101…
…11010011100101
312201022211001200
410320313103211
5131443443321
612045513113
72014056063
oct470672345
9181284050
1082015461
1142328480
1223572799
1313cb7878
14ac6d033
157300d26
hex4e374e5

82015461 has 24 divisors (see below), whose sum is σ = 130201344. Its totient is φ = 49335360.

The previous prime is 82015459. The next prime is 82015477. The reversal of 82015461 is 16451028.

It is not a de Polignac number, because 82015461 - 21 = 82015459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82015561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10540 + ... + 16586.

It is an arithmetic number, because the mean of its divisors is an integer number (5425056).

Almost surely, 282015461 is an apocalyptic number.

It is an amenable number.

82015461 is a deficient number, since it is larger than the sum of its proper divisors (48185883).

82015461 is a wasteful number, since it uses less digits than its factorization.

82015461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201 (or 6198 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 82015461 is about 9056.2387888129. The cubic root of 82015461 is about 434.4754517505.

Adding to 82015461 its reverse (16451028), we get a palindrome (98466489).

The spelling of 82015461 in words is "eighty-two million, fifteen thousand, four hundred sixty-one".

Divisors: 1 3 9 11 33 99 137 411 1233 1507 4521 6047 13563 18141 54423 66517 199551 598653 828439 2485317 7455951 9112829 27338487 82015461