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82045639347 = 3724720835701
BaseRepresentation
bin100110001101001001…
…1010001101010110011
321211202220100022122020
41030122103101222303
52321012140424342
6101405150442523
75633111266500
oct1143223215263
9254686308566
1082045639347
1131882696211
1213a98b03443
137976b9b7b9
143d847144a7
152202d990ec
hex131a4d1ab3

82045639347 has 48 divisors (see below), whose sum is σ = 130047201792. Its totient is φ = 45855633600.

The previous prime is 82045639297. The next prime is 82045639349. The reversal of 82045639347 is 74393654028.

It is not a de Polignac number, because 82045639347 - 215 = 82045606579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82045639347.

It is not an unprimeable number, because it can be changed into a prime (82045639349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14388597 + ... + 14394297.

It is an arithmetic number, because the mean of its divisors is an integer number (2709316704).

Almost surely, 282045639347 is an apocalyptic number.

82045639347 is a deficient number, since it is larger than the sum of its proper divisors (48001562445).

82045639347 is a wasteful number, since it uses less digits than its factorization.

82045639347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7848 (or 7841 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 82045639347 in words is "eighty-two billion, forty-five million, six hundred thirty-nine thousand, three hundred forty-seven".

Divisors: 1 3 7 21 47 49 141 147 329 987 2083 2303 5701 6249 6909 14581 17103 39907 43743 97901 102067 119721 267947 279349 293703 306201 685307 803841 838047 1875629 2055921 4797149 5626887 11875183 13129403 14391447 35625549 39388209 83126281 249378843 558133601 581883967 1674400803 1745651901 3906935207 11720805621 27348546449 82045639347