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82044817 = 3143611009
BaseRepresentation
bin1001110001111…
…10011110010001
312201101022022221
410320332132101
5132000413232
612050301041
72014240501
oct470763621
9181338287
1082044817
1142348538
1223587781
1313cc803a
14ac79a01
157309897
hex4e3e791

82044817 has 16 divisors (see below), whose sum is σ = 88168960. Its totient is φ = 76204800.

The previous prime is 82044811. The next prime is 82044821. The reversal of 82044817 is 71844028.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82044817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82044811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80809 + ... + 81817.

It is an arithmetic number, because the mean of its divisors is an integer number (5510560).

Almost surely, 282044817 is an apocalyptic number.

It is an amenable number.

82044817 is a deficient number, since it is larger than the sum of its proper divisors (6124143).

82044817 is a wasteful number, since it uses less digits than its factorization.

82044817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 82044817 is about 9057.8594049588. The cubic root of 82044817 is about 434.5272831969.

The spelling of 82044817 in words is "eighty-two million, forty-four thousand, eight hundred seventeen".

Divisors: 1 31 43 61 1009 1333 1891 2623 31279 43387 61549 81313 1344997 1908019 2646607 82044817