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90120552880160 = 25511331154697461
BaseRepresentation
bin10100011111011011010011…
…100010101001100000100000
3102211002102220021121002221202
4110133123103202221200200
543303013343014131120
6515400451020140332
724660665212165565
oct2437332342514040
9384072807532852
1090120552880160
1126795a03732330
12a135b729976a8
133b394408b320a
141837c0262886c
15a64398143875
hex51f6d38a9820

90120552880160 has 96 divisors (see below), whose sum is σ = 232966952293824. Its totient is φ = 32672103552000.

The previous prime is 90120552880157. The next prime is 90120552880177. The reversal of 90120552880160 is 6108825502109.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76766171 + ... + 77931290.

It is an arithmetic number, because the mean of its divisors is an integer number (2426739086394).

Almost surely, 290120552880160 is an apocalyptic number.

It is an amenable number.

90120552880160 is an abundant number, since it is smaller than the sum of its proper divisors (142846399413664).

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

90120552880160 is a wasteful number, since it uses less digits than its factorization.

90120552880160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154697818 (or 154697810 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 90120552880160 in words is "ninety trillion, one hundred twenty billion, five hundred fifty-two million, eight hundred eighty thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 331 352 440 662 880 1324 1655 1760 2648 3310 3641 5296 6620 7282 10592 13240 14564 18205 26480 29128 36410 52960 58256 72820 116512 145640 291280 582560 154697461 309394922 618789844 773487305 1237579688 1546974610 1701672071 2475159376 3093949220 3403344142 4950318752 6187898440 6806688284 8508360355 12375796880 13613376568 17016720710 24751593760 27226753136 34033441420 51204859591 54453506272 68066882840 102409719182 136133765680 204819438364 256024297955 272267531360 409638876728 512048595910 563253455501 819277753456 1024097191820 1126506911002 1638555506912 2048194383640 2253013822004 2816267277505 4096388767280 4506027644008 5632534555010 8192777534560 9012055288016 11265069110020 18024110576032 22530138220040 45060276440080 90120552880160