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82165492 = 2220541373
BaseRepresentation
bin1001110010110…
…11111011110100
312201121102212101
410321123323310
5132013243432
612053031444
72015252353
oct471337364
9181542771
1082165492
1142420172
1223625584
131403ac46
14acab99a
1573304e7
hex4e5bef4

82165492 has 6 divisors (see below), whose sum is σ = 143789618. Its totient is φ = 41082744.

The previous prime is 82165463. The next prime is 82165507. The reversal of 82165492 is 29456128.

It can be written as a sum of positive squares in only one way, i.e., 67831696 + 14333796 = 8236^2 + 3786^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270683 + ... + 10270690.

Almost surely, 282165492 is an apocalyptic number.

It is an amenable number.

82165492 is a deficient number, since it is larger than the sum of its proper divisors (61624126).

82165492 is a wasteful number, since it uses less digits than its factorization.

82165492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20541377 (or 20541375 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 82165492 is about 9064.5182993913. The cubic root of 82165492 is about 434.7402192244.

The spelling of 82165492 in words is "eighty-two million, one hundred sixty-five thousand, four hundred ninety-two".

Divisors: 1 2 4 20541373 41082746 82165492