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18914773295 = 5114753138059
BaseRepresentation
bin10001100111011010…
…001000100100101111
31210211012111001002002
4101213122020210233
5302214140221140
612404521122515
71236503630435
oct214732104457
953735431062
1018914773295
118026995150
1237ba62943b
131a258ca362
14cb6110d55
1575a852415
hex46768892f

18914773295 has 32 divisors (see below), whose sum is σ = 25765309440. Its totient is φ = 13209389440.

The previous prime is 18914773279. The next prime is 18914773301. The reversal of 18914773295 is 59237741981.

It is not a de Polignac number, because 18914773295 - 24 = 18914773279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18914773295.

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 31 ways as a sum of consecutive naturals, for example, 67976 + ... + 206034.

It is an arithmetic number, because the mean of its divisors is an integer number (805165920).

Almost surely, 218914773295 is an apocalyptic number.

18914773295 is a deficient number, since it is larger than the sum of its proper divisors (6850536145).

18914773295 is a wasteful number, since it uses less digits than its factorization.

18914773295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138175.

The product of its digits is 3810240, while the sum is 56.

The spelling of 18914773295 in words is "eighteen billion, nine hundred fourteen million, seven hundred seventy-three thousand, two hundred ninety-five".

Divisors: 1 5 11 47 53 55 235 265 517 583 2491 2585 2915 12455 27401 137005 138059 690295 1518649 6488773 7317127 7593245 32443865 36585635 71376503 80488397 343904969 356882515 402441985 1719524845 3782954659 18914773295