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82186250489 = 719617941733
BaseRepresentation
bin100110010001010101…
…1101010100011111001
321212010200221002212022
41030202223222203321
52321304140003424
6101431132324225
75636436413510
oct1144253524371
9255120832768
1082186250489
1131944aa5472
1213b18013675
13799a061065
143d99277677
1522103c195e
hex1322aea8f9

82186250489 has 8 divisors (see below), whose sum is σ = 98870677440. Its totient is φ = 66737707056.

The previous prime is 82186250483. The next prime is 82186250507. The reversal of 82186250489 is 98405268128.

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 82186250489 - 224 = 82169473273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82186250489.

It is not an unprimeable number, because it can be changed into a prime (82186250483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308970734 + ... + 308970999.

It is an arithmetic number, because the mean of its divisors is an integer number (12358834680).

Almost surely, 282186250489 is an apocalyptic number.

It is an amenable number.

82186250489 is a deficient number, since it is larger than the sum of its proper divisors (16684426951).

82186250489 is a wasteful number, since it uses less digits than its factorization.

82186250489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617941759.

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 82186250489 in words is "eighty-two billion, one hundred eighty-six million, two hundred fifty thousand, four hundred eighty-nine".

Divisors: 1 7 19 133 617941733 4325592131 11740892927 82186250489