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80800090550 = 2521616001811
BaseRepresentation
bin100101101000000001…
…1111000100110110110
321201120002121212220022
41023100003320212312
52310434310344200
6101041414205142
75560205303054
oct1132003704666
9251502555808
1080800090550
11312a35a9a43
12137ab9537b2
137808b19c8a
143ca71291d4
15217d862885
hex12d00f89b6

80800090550 has 12 divisors (see below), whose sum is σ = 150288168516. Its totient is φ = 32320036200.

The previous prime is 80800090543. The next prime is 80800090601. The reversal of 80800090550 is 5509000808.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80800090550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808000856 + ... + 808000955.

It is an arithmetic number, because the mean of its divisors is an integer number (12524014043).

Almost surely, 280800090550 is an apocalyptic number.

80800090550 is a deficient number, since it is larger than the sum of its proper divisors (69488077966).

80800090550 is a wasteful number, since it uses less digits than its factorization.

80800090550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616001823 (or 1616001818 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 80800090550 in words is "eighty billion, eight hundred million, ninety thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 1616001811 3232003622 8080009055 16160018110 40400045275 80800090550