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80068206800 = 2452200170517
BaseRepresentation
bin100101010010001101…
…1111110000011010000
321122200002110100010202
41022210123332003100
52302434430104200
6100441031314332
75533110346151
oct1124433760320
9248602410122
1080068206800
1130a5846293a
121362681b9a8
1377202c637a
143c37c51928
1521394931d5
hex12a46fe0d0

80068206800 has 30 divisors (see below), whose sum is σ = 192363867798. Its totient is φ = 32027282560.

The previous prime is 80068206791. The next prime is 80068206847. The reversal of 80068206800 is 860286008.

It can be written as a sum of positive squares in 3 ways, for example, as 15192041536 + 64876165264 = 123256^2 + 254708^2 .

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, 100084859 + ... + 100085658.

Almost surely, 280068206800 is an apocalyptic number.

80068206800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80068206800 is an abundant number, since it is smaller than the sum of its proper divisors (112295660998).

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

80068206800 is a wasteful number, since it uses less digits than its factorization.

80068206800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200170535 (or 200170524 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 80068206800 in words is "eighty billion, sixty-eight million, two hundred six thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 200170517 400341034 800682068 1000852585 1601364136 2001705170 3202728272 4003410340 5004262925 8006820680 10008525850 16013641360 20017051700 40034103400 80068206800