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80824241818 = 28321012412
BaseRepresentation
bin100101101000110000…
…0000000111010011010
321201121210001220012201
41023101200000322122
52311012001214233
6101044040000414
75560620501655
oct1132140007232
9251553056181
1080824241818
11313061a5171
12137b7a6010a
137810b24a78
143caa41489c
152180a3377d
hex12d1800e9a

80824241818 has 36 divisors (see below), whose sum is σ = 124446001374. Its totient is φ = 39365904000.

The previous prime is 80824241767. The next prime is 80824241819. The reversal of 80824241818 is 81814242808.

It can be written as a sum of positive squares in 3 ways, for example, as 78656128849 + 2168112969 = 280457^2 + 46563^2 .

It is not an unprimeable number, because it can be changed into a prime (80824241819) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 335370178 + ... + 335370418.

Almost surely, 280824241818 is an apocalyptic number.

80824241818 is a deficient number, since it is larger than the sum of its proper divisors (43621759556).

80824241818 is an equidigital number, since it uses as much as digits as its factorization.

80824241818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 46.

The spelling of 80824241818 in words is "eighty billion, eight hundred twenty-four million, two hundred forty-one thousand, eight hundred eighteen".

Divisors: 1 2 83 101 166 202 241 482 6889 8383 13778 16766 20003 24341 40006 48682 58081 116162 695789 1391578 1660249 2020303 3320498 4040606 4820723 5866181 9641446 11732362 167685149 335370298 400120009 486893023 800240018 973786046 40412120909 80824241818