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82482725 = 52131714929
BaseRepresentation
bin1001110101010…
…01011000100101
312202012120000202
410322221120211
5132103421400
612103520245
72021043263
oct472513045
9182176022
1082482725
1142617546
1223759085
131411c460
14ad51433
1573944d5
hex4ea9625

82482725 has 24 divisors (see below), whose sum is σ = 116633160. Its totient is φ = 57323520.

The previous prime is 82482713. The next prime is 82482811. The reversal of 82482725 is 52728428.

It is a happy number.

It is a Cunningham number, because it is equal to 90822+1.

It can be written as a sum of positive squares in 12 ways, for example, as 11282881 + 71199844 = 3359^2 + 8438^2 .

It is not a de Polignac number, because 82482725 - 212 = 82478629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1940 + ... + 12989.

It is an arithmetic number, because the mean of its divisors is an integer number (4859715).

Almost surely, 282482725 is an apocalyptic number.

82482725 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82482725 is a deficient number, since it is larger than the sum of its proper divisors (34150435).

82482725 is a wasteful number, since it uses less digits than its factorization.

82482725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14969 (or 14964 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 82482725 is about 9082.0000550540. Note that the first 4 decimals coincide. The cubic root of 82482725 is about 435.2989973260.

The spelling of 82482725 in words is "eighty-two million, four hundred eighty-two thousand, seven hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 221 325 425 1105 5525 14929 74645 194077 253793 373225 970385 1268965 3299309 4851925 6344825 16496545 82482725