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80898804198 = 23252315975381
BaseRepresentation
bin100101101010111110…
…0011100100111100110
321201210222101001120100
41023111330130213212
52311140043213243
6101055302044530
75562514330002
oct1132574344746
9251728331510
1080898804198
11313442a1a73
1213818a19746
137823400114
143cb62a3702
1521873610d3
hex12d5f1c9e6

80898804198 has 48 divisors (see below), whose sum is σ = 175758510096. Its totient is φ = 26892855360.

The previous prime is 80898804169. The next prime is 80898804209. The reversal of 80898804198 is 89140889808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15031468 + ... + 15036848.

It is an arithmetic number, because the mean of its divisors is an integer number (3661635627).

Almost surely, 280898804198 is an apocalyptic number.

80898804198 is an abundant number, since it is smaller than the sum of its proper divisors (94859705898).

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

80898804198 is a wasteful number, since it uses less digits than its factorization.

80898804198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7509 (or 7506 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 63.

The spelling of 80898804198 in words is "eighty billion, eight hundred ninety-eight million, eight hundred four thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 18 523 1046 1569 1597 3138 3194 4707 4791 5381 9414 9582 10762 14373 16143 28746 32286 48429 96858 835231 1670462 2505693 2814263 5011386 5628526 7517079 8442789 8593457 15034158 16885578 17186914 25328367 25780371 50656734 51560742 77341113 154682226 4494378011 8988756022 13483134033 26966268066 40449402099 80898804198