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80472268811 = 1119443869153
BaseRepresentation
bin100101011110010000…
…1010110000000001011
321200201020202211000102
41022330201112000023
52304301400100221
6100545104000015
75546114666414
oct1127441260013
9250636684012
1080472268811
1131145552690
121371a00000b
137785c2a80c
143c7579280b
15215ebaa30b
hex12bc85600b

80472268811 has 16 divisors (see below), whose sum is σ = 92617050240. Its totient is φ = 69149733120.

The previous prime is 80472268769. The next prime is 80472268879. The reversal of 80472268811 is 11886227408.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80472268811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80472262811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341990 + ... + 527163.

It is an arithmetic number, because the mean of its divisors is an integer number (5788565640).

Almost surely, 280472268811 is an apocalyptic number.

80472268811 is a deficient number, since it is larger than the sum of its proper divisors (12144781429).

80472268811 is a wasteful number, since it uses less digits than its factorization.

80472268811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869626.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 80472268811 in words is "eighty billion, four hundred seventy-two million, two hundred sixty-eight thousand, eight hundred eleven".

Divisors: 1 11 19 209 443 4873 8417 92587 869153 9560683 16513907 181652977 385034779 4235382569 7315660801 80472268811