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82607565 = 355507171
BaseRepresentation
bin1001110110001…
…11110111001101
312202102220021110
410323013313031
5132121420230
612110322233
72022103245
oct473076715
9182386243
1082607565
11426a2317
12237b9379
1314164221
14ad84b25
1573bb4b0
hex4ec7dcd

82607565 has 8 divisors (see below), whose sum is σ = 132172128. Its totient is φ = 44057360.

The previous prime is 82607563. The next prime is 82607599. The reversal of 82607565 is 56570628.

It is a happy number.

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

It is not a de Polignac number, because 82607565 - 21 = 82607563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82607563) 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, 2753571 + ... + 2753600.

It is an arithmetic number, because the mean of its divisors is an integer number (16521516).

Almost surely, 282607565 is an apocalyptic number.

It is an amenable number.

82607565 is a deficient number, since it is larger than the sum of its proper divisors (49564563).

82607565 is a wasteful number, since it uses less digits than its factorization.

82607565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5507179.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 82607565 is about 9088.8703918584. The cubic root of 82607565 is about 435.5184991810.

The spelling of 82607565 in words is "eighty-two million, six hundred seven thousand, five hundred sixty-five".

Divisors: 1 3 5 15 5507171 16521513 27535855 82607565