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82144675 = 522923907
BaseRepresentation
bin1001110010101…
…10110110100011
312201120101022101
410321112312203
5132012112200
612052351231
72015134564
oct471266643
9181511271
1082144675
1142406568
1223615517
1314031622
14aca416b
15732926a
hex4e56da3

82144675 has 18 divisors (see below), whose sum is σ = 105519908. Its totient is φ = 63433440.

The previous prime is 82144651. The next prime is 82144679. The reversal of 82144675 is 57644128.

It is not a de Polignac number, because 82144675 - 221 = 80047523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82144679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19072 + ... + 22978.

Almost surely, 282144675 is an apocalyptic number.

82144675 is a deficient number, since it is larger than the sum of its proper divisors (23375233).

82144675 is a wasteful number, since it uses less digits than its factorization.

82144675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3975 (or 3941 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 82144675 is about 9063.3699582440. The cubic root of 82144675 is about 434.7035016547.

The spelling of 82144675 in words is "eighty-two million, one hundred forty-four thousand, six hundred seventy-five".

Divisors: 1 5 25 29 145 725 841 3907 4205 19535 21025 97675 113303 566515 2832575 3285787 16428935 82144675