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82069 = 1359107
BaseRepresentation
bin10100000010010101
311011120121
4110002111
510111234
61431541
7461161
oct240225
9134517
1082069
1156729
123b5b1
132b480
1421ca1
15194b4
hex14095

82069 has 8 divisors (see below), whose sum is σ = 90720. Its totient is φ = 73776.

The previous prime is 82067. The next prime is 82073. The reversal of 82069 is 96028.

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 82069 - 21 = 82067 is a prime.

It is a super-2 number, since 2×820692 = 13470641522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714 + ... + 820.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

282069 is an apocalyptic number.

It is an amenable number.

82069 is a deficient number, since it is larger than the sum of its proper divisors (8651).

82069 is a wasteful number, since it uses less digits than its factorization.

82069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 82069 is about 286.4768751575. The cubic root of 82069 is about 43.4569971821.

The spelling of 82069 in words is "eighty-two thousand, sixty-nine".

Divisors: 1 13 59 107 767 1391 6313 82069