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82984447 = 713911917
BaseRepresentation
bin1001111001000…
…11110111111111
312210011001021001
410330203313333
5132221000242
612122351131
72025233110
oct474436777
9183131231
1082984447
114292a497
122395b4a7
1314266930
14b042207
157442eb7
hex4f23dff

82984447 has 8 divisors (see below), whose sum is σ = 102134816. Its totient is φ = 65657952.

The previous prime is 82984423. The next prime is 82984481. The reversal of 82984447 is 74448928.

It is a happy number.

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 82984447 - 219 = 82460159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82984397 and 82984406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82984417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455868 + ... + 456049.

It is an arithmetic number, because the mean of its divisors is an integer number (12766852).

Almost surely, 282984447 is an apocalyptic number.

82984447 is a deficient number, since it is larger than the sum of its proper divisors (19150369).

82984447 is a wasteful number, since it uses less digits than its factorization.

82984447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911937.

The product of its digits is 516096, while the sum is 46.

The square root of 82984447 is about 9109.5799573855. The cubic root of 82984447 is about 436.1798191442.

The spelling of 82984447 in words is "eighty-two million, nine hundred eighty-four thousand, four hundred forty-seven".

Divisors: 1 7 13 91 911917 6383419 11854921 82984447