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18164551706 = 273458937511
BaseRepresentation
bin10000111010101100…
…010001000000011010
31201212220210211112022
4100322230101000122
5244200111123311
612202241214442
71212064066460
oct207254210032
951786724468
1018164551706
117781463604
12362b331422
131936355a62
14c44622830
15714a5e5db
hex43ab1101a

18164551706 has 16 divisors (see below), whose sum is σ = 31140961920. Its totient is φ = 7784375280.

The previous prime is 18164551661. The next prime is 18164551721. The reversal of 18164551706 is 60715546181.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465491 + ... + 503001.

It is an arithmetic number, because the mean of its divisors is an integer number (1946310120).

Almost surely, 218164551706 is an apocalyptic number.

18164551706 is a deficient number, since it is larger than the sum of its proper divisors (12976410214).

18164551706 is a wasteful number, since it uses less digits than its factorization.

18164551706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72109.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 18164551706 in words is "eighteen billion, one hundred sixty-four million, five hundred fifty-one thousand, seven hundred six".

Divisors: 1 2 7 14 34589 37511 69178 75022 242123 262577 484246 525154 1297467979 2594935958 9082275853 18164551706