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82110069 = 3223396667
BaseRepresentation
bin1001110010011…
…10011001110101
312201111121211200
410321032121311
5132010010234
612051523113
72014631646
oct471163165
9181447750
1082110069
1142392568
12235b9499
131401b952
14ac956cd
15731dd99
hex4e4e675

82110069 has 12 divisors (see below), whose sum is σ = 123760416. Its totient is φ = 52359912.

The previous prime is 82110047. The next prime is 82110079. The reversal of 82110069 is 96001128.

It is not a de Polignac number, because 82110069 - 29 = 82109557 is a prime.

It is a super-2 number, since 2×821100692 = 13484126862369522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82110029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198127 + ... + 198540.

It is an arithmetic number, because the mean of its divisors is an integer number (10313368).

Almost surely, 282110069 is an apocalyptic number.

It is an amenable number.

82110069 is a deficient number, since it is larger than the sum of its proper divisors (41650347).

82110069 is a wasteful number, since it uses less digits than its factorization.

82110069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396696 (or 396693 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 82110069 is about 9061.4606438477. The cubic root of 82110069 is about 434.6424489557.

The spelling of 82110069 in words is "eighty-two million, one hundred ten thousand, sixty-nine".

Divisors: 1 3 9 23 69 207 396667 1190001 3570003 9123341 27370023 82110069