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84025 = 523361
BaseRepresentation
bin10100100000111001
311021021001
4110200321
510142100
61445001
7466654
oct244071
9137231
1084025
1158147
1240761
132c326
142289b
1519d6a
hex14839

84025 has 6 divisors (see below), whose sum is σ = 104222. Its totient is φ = 67200.

The previous prime is 84017. The next prime is 84047. The reversal of 84025 is 52048.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11664 + 72361 = 108^2 + 269^2 .

It is not a de Polignac number, because 84025 - 23 = 84017 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 83993 and 84011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1656 + ... + 1705.

284025 is an apocalyptic number.

It is an amenable number.

84025 is a deficient number, since it is larger than the sum of its proper divisors (20197).

84025 is a wasteful number, since it uses less digits than its factorization.

84025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 84025 is about 289.8706608127. The cubic root of 84025 is about 43.7995357290.

The spelling of 84025 in words is "eighty-four thousand, twenty-five".

Divisors: 1 5 25 3361 16805 84025