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18114170407 = 47385407881
BaseRepresentation
bin10000110111101100…
…000100111000100111
31201202102000012101021
4100313230010320213
5244044211423112
612153241312011
71210612623304
oct206754047047
951672005337
1018114170407
117755a82373
123616495607
131928a95c38
14c3ba6a0ab
1571040b907
hex437b04e27

18114170407 has 4 divisors (see below), whose sum is σ = 18499578336. Its totient is φ = 17728762480.

The previous prime is 18114170363. The next prime is 18114170419. The reversal of 18114170407 is 70407141181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18114170407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114170807) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 192703894 + ... + 192703987.

It is an arithmetic number, because the mean of its divisors is an integer number (4624894584).

Almost surely, 218114170407 is an apocalyptic number.

18114170407 is a deficient number, since it is larger than the sum of its proper divisors (385407929).

18114170407 is an equidigital number, since it uses as much as digits as its factorization.

18114170407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385407928.

The product of its (nonzero) digits is 6272, while the sum is 34.

The spelling of 18114170407 in words is "eighteen billion, one hundred fourteen million, one hundred seventy thousand, four hundred seven".

Divisors: 1 47 385407881 18114170407