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18004058395 = 553109162273
BaseRepresentation
bin10000110001001000…
…000010000100011011
31201110201210221002121
4100301020002010123
5243333014332040
612134305242111
71205104654111
oct206110020433
951421727077
1018004058395
1176a9904604
1235a5633337
13190c0218bb
14c2b1a5ab1
1570590ac4a
hex43120211b

18004058395 has 16 divisors (see below), whose sum is σ = 22033039392. Its totient is φ = 14118307840.

The previous prime is 18004058389. The next prime is 18004058417. The reversal of 18004058395 is 59385040081.

It is a de Polignac number, because none of the positive numbers 2k-18004058395 is a prime.

It is a super-2 number, since 2×180040583952 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257979 + ... + 320251.

It is an arithmetic number, because the mean of its divisors is an integer number (1377064962).

Almost surely, 218004058395 is an apocalyptic number.

18004058395 is a deficient number, since it is larger than the sum of its proper divisors (4028980997).

18004058395 is a wasteful number, since it uses less digits than its factorization.

18004058395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63422.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 18004058395 in words is "eighteen billion, four million, fifty-eight thousand, three hundred ninety-five".

Divisors: 1 5 53 265 1091 5455 57823 62273 289115 311365 3300469 16502345 67939843 339699215 3600811679 18004058395