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82184657197 = 1971453287117
BaseRepresentation
bin100110010001010010…
…1100101100100101101
321212010120221011021111
41030202211211210231
52321303233012242
6101431034232021
75636420026366
oct1144245454455
9255116834244
1082184657197
11319441073a5
1213b17585611
137999923a96
143d98d80b6d
1522101a9817
hex132296592d

82184657197 has 8 divisors (see below), whose sum is σ = 82658975256. Its totient is φ = 81710916672.

The previous prime is 82184657161. The next prime is 82184657207. The reversal of 82184657197 is 79175648128.

It can be written as a sum of positive squares in 4 ways, for example, as 37998094761 + 44186562436 = 194931^2 + 210206^2 .

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 82184657197 - 211 = 82184655149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82184657147) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 142683 + ... + 429799.

It is an arithmetic number, because the mean of its divisors is an integer number (10332371907).

Almost surely, 282184657197 is an apocalyptic number.

It is an amenable number.

82184657197 is a deficient number, since it is larger than the sum of its proper divisors (474318059).

82184657197 is a wasteful number, since it uses less digits than its factorization.

82184657197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288767.

The product of its digits is 6773760, while the sum is 58.

The spelling of 82184657197 in words is "eighty-two billion, one hundred eighty-four million, six hundred fifty-seven thousand, one hundred ninety-seven".

Divisors: 1 197 1453 286241 287117 56562049 417181001 82184657197