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128802310182252 = 22337224339060881
BaseRepresentation
bin11101010010010100011111…
…111100011101010101101100
3121220001101021110022121002000
4131102110133330131111230
5113340244112401313002
61133534544152332300
736062442214215600
oct3522243774352554
9556041243277060
10128802310182252
1138049831257273
12125429010a4090
1356b400c799135
1423b40ca7d3500
15ed569c5e161c
hex75251ff1d56c

128802310182252 has 72 divisors (see below), whose sum is σ = 388451411676720. Its totient is φ = 36800660050560.

The previous prime is 128802310182167. The next prime is 128802310182257. The reversal of 128802310182252 is 252281013208821.

128802310182252 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 0 + 2 + 310 + 1 + 82 + 252 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 128802310182198 and 128802310182207.

It is not an unprimeable number, because it can be changed into a prime (128802310182257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12169525149 + ... + 12169535732.

It is an arithmetic number, because the mean of its divisors is an integer number (5395158495510).

Almost surely, 2128802310182252 is an apocalyptic number.

128802310182252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128802310182252 is an abundant number, since it is smaller than the sum of its proper divisors (259649101494468).

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

128802310182252 is a wasteful number, since it uses less digits than its factorization.

128802310182252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24339060908 (or 24339060893 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The spelling of 128802310182252 in words is "one hundred twenty-eight trillion, eight hundred two billion, three hundred ten million, one hundred eighty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 84 98 108 126 147 189 196 252 294 378 441 588 756 882 1323 1764 2646 5292 24339060881 48678121762 73017182643 97356243524 146034365286 170373426167 219051547929 292068730572 340746852334 438103095858 511120278501 657154643787 681493704668 876206191716 1022240557002 1192613983169 1314309287574 1533360835503 2044481114004 2385227966338 2628618575148 3066721671006 3577841949507 4600082506509 4770455932676 6133443342012 7155683899014 9200165013018 10733525848521 14311367798028 18400330026036 21467051697042 32200577545563 42934103394084 64401155091126 128802310182252