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82386921893 = 647225156569
BaseRepresentation
bin100110010111010100…
…1001010100110100101
321212122200112021021112
41030232221022212211
52322212023000033
6101503101354405
75644424165363
oct1145651124645
9255580467245
1082386921893
1131a382a6901
1213b73268a05
1379cc7c1b33
143db7b92633
152222d0ec48
hex132ea4a9a5

82386921893 has 8 divisors (see below), whose sum is σ = 82552374720. Its totient is φ = 82221588000.

The previous prime is 82386921811. The next prime is 82386921919. The reversal of 82386921893 is 39812968328.

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 82386921893 - 214 = 82386905509 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 (82386941893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428113 + ... + 1484681.

It is an arithmetic number, because the mean of its divisors is an integer number (10319046840).

Almost surely, 282386921893 is an apocalyptic number.

It is an amenable number.

82386921893 is a deficient number, since it is larger than the sum of its proper divisors (165452827).

82386921893 is a wasteful number, since it uses less digits than its factorization.

82386921893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59467.

The product of its digits is 8957952, while the sum is 59.

The spelling of 82386921893 in words is "eighty-two billion, three hundred eighty-six million, nine hundred twenty-one thousand, eight hundred ninety-three".

Divisors: 1 647 2251 56569 1456397 36600143 127336819 82386921893