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82660248867 = 3743611500649
BaseRepresentation
bin100110011111011101…
…1110100110100100011
321220100201211201101210
41030332323310310203
52323242010430432
6101550144001203
75654253344130
oct1147673646443
9256321751353
1082660248867
1132068612469
121402a900203
137a44311081
1440021c1587
15223bd008cc
hex133eef4d23

82660248867 has 32 divisors (see below), whose sum is σ = 131000742400. Its totient is φ = 45379595520.

The previous prime is 82660248829. The next prime is 82660248893. The reversal of 82660248867 is 76884206628.

It is not a de Polignac number, because 82660248867 - 27 = 82660248739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82660248817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 695242 + ... + 805407.

It is an arithmetic number, because the mean of its divisors is an integer number (4093773200).

Almost surely, 282660248867 is an apocalyptic number.

82660248867 is a deficient number, since it is larger than the sum of its proper divisors (48340493533).

82660248867 is a wasteful number, since it uses less digits than its factorization.

82660248867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500763.

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 82660248867 in words is "eighty-two billion, six hundred sixty million, two hundred forty-eight thousand, eight hundred sixty-seven".

Divisors: 1 3 7 21 43 61 129 183 301 427 903 1281 2623 7869 18361 55083 1500649 4501947 10504543 31513629 64527907 91539589 193583721 274618767 451695349 640777123 1355086047 1922331369 3936202327 11808606981 27553416289 82660248867