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82083438 = 23214393169
BaseRepresentation
bin1001110010001…
…11111001101110
312201110021022100
410321013321232
5132003132223
612051155530
72014461213
oct471077156
9181407270
1082083438
1142374558
12235a5ba6
131400c7a8
14ac89b0a
157316043
hex4e47e6e

82083438 has 24 divisors (see below), whose sum is σ = 178027200. Its totient is φ = 27333504.

The previous prime is 82083433. The next prime is 82083457. The reversal of 82083438 is 83438028.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82083433) 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, 24318 + ... + 27486.

It is an arithmetic number, because the mean of its divisors is an integer number (7417800).

Almost surely, 282083438 is an apocalyptic number.

82083438 is an abundant number, since it is smaller than the sum of its proper divisors (95943762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82083438 is a wasteful number, since it uses less digits than its factorization.

82083438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 82083438 is about 9059.9910595982. The cubic root of 82083438 is about 434.5954542537.

The spelling of 82083438 in words is "eighty-two million, eighty-three thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 1439 2878 3169 4317 6338 8634 9507 12951 19014 25902 28521 57042 4560191 9120382 13680573 27361146 41041719 82083438