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8280005085 = 35511896961
BaseRepresentation
bin1111011011000011…
…01101100111011101
3210101001021211200000
413231201231213131
5113424140130320
63445341124513
7412120611342
oct75541554735
923331254600
108280005085
113569935410
121730b59739
13a1c55cbc1
145879547c9
15336da9c90
hex1ed86d9dd

8280005085 has 96 divisors (see below), whose sum is σ = 16421408640. Its totient is φ = 3968870400.

The previous prime is 8280005081. The next prime is 8280005101. The reversal of 8280005085 is 5805000828.

It is not a de Polignac number, because 8280005085 - 22 = 8280005081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280005081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1186005 + ... + 1192965.

It is an arithmetic number, because the mean of its divisors is an integer number (171056340).

Almost surely, 28280005085 is an apocalyptic number.

It is an amenable number.

8280005085 is a deficient number, since it is larger than the sum of its proper divisors (8141403555).

8280005085 is a wasteful number, since it uses less digits than its factorization.

8280005085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081 (or 7069 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 8280005085 is about 90994.5332698619. The cubic root of 8280005085 is about 2023.0666980410.

The spelling of 8280005085 in words is "eight billion, two hundred eighty million, five thousand, eighty-five".

Divisors: 1 3 5 9 11 15 27 33 45 55 81 89 99 135 165 243 267 297 405 445 495 801 891 979 1215 1335 1485 2403 2673 2937 4005 4455 4895 6961 7209 8811 12015 13365 14685 20883 21627 26433 34805 36045 44055 62649 76571 79299 104415 108135 132165 187947 229713 237897 313245 382855 396495 563841 619529 689139 939735 1148565 1189485 1691523 1858587 2067417 2819205 3097645 3445695 5575761 6202251 6814819 8457615 9292935 10337085 16727283 18606753 20444457 27878805 31011255 34074095 50181849 61333371 83636415 93033765 102222285 150545547 184000113 250909245 306666855 552000339 752727735 920000565 1656001017 2760001695 8280005085