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80822279706 = 23737330715727
BaseRepresentation
bin100101101000101100…
…0100001111000011010
321201121122101012200220
41023101120201320122
52311011000422311
6101043525540510
75560565020350
oct1132130417032
9251548335626
1080822279706
1131305084a93
12137b7274736
1378105b895c
143caa0637d0
152180797206
hex12d1621e1a

80822279706 has 64 divisors (see below), whose sum is σ = 189798961152. Its totient is φ = 22459747392.

The previous prime is 80822279689. The next prime is 80822279717. The reversal of 80822279706 is 60797222808.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5131215 + ... + 5146941.

It is an arithmetic number, because the mean of its divisors is an integer number (2965608768).

Almost surely, 280822279706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80822279706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94899480576).

80822279706 is an abundant number, since it is smaller than the sum of its proper divisors (108976681446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80822279706 is a wasteful number, since it uses less digits than its factorization.

80822279706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19083.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 80822279706 in words is "eighty billion, eight hundred twenty-two million, two hundred seventy-nine thousand, seven hundred six".

Divisors: 1 2 3 6 7 14 21 37 42 74 111 222 259 518 777 1554 3307 6614 9921 15727 19842 23149 31454 46298 47181 69447 94362 110089 122359 138894 220178 244718 330267 367077 581899 660534 734154 856513 1163798 1713026 1745697 2569539 3491394 4073293 5139078 8146586 12219879 24439758 52009189 104018378 156027567 312055134 364064323 728128646 1092192969 1924339993 2184385938 3848679986 5773019979 11546039958 13470379951 26940759902 40411139853 80822279706