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82518836 = 2220629709
BaseRepresentation
bin1001110101100…
…10001100110100
312202021101120012
410322302030310
5132111100321
612104355352
72021253461
oct472621464
9182241505
1082518836
1142641694
1223775b58
1314132a1a
14ad60668
1573a005b
hex4eb2334

82518836 has 6 divisors (see below), whose sum is σ = 144407970. Its totient is φ = 41259416.

The previous prime is 82518823. The next prime is 82518841. The reversal of 82518836 is 63881528.

It can be written as a sum of positive squares in only one way, i.e., 42120100 + 40398736 = 6490^2 + 6356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82518793 and 82518802.

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 as a sum of consecutive naturals, namely, 10314851 + ... + 10314858.

It is an arithmetic number, because the mean of its divisors is an integer number (24067995).

Almost surely, 282518836 is an apocalyptic number.

It is an amenable number.

82518836 is a deficient number, since it is larger than the sum of its proper divisors (61889134).

82518836 is a wasteful number, since it uses less digits than its factorization.

82518836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20629713 (or 20629711 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 82518836 is about 9083.9878907889. The cubic root of 82518836 is about 435.3625128024.

The spelling of 82518836 in words is "eighty-two million, five hundred eighteen thousand, eight hundred thirty-six".

Divisors: 1 2 4 20629709 41259418 82518836