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18486067 = 172310729
BaseRepresentation
bin100011010000…
…1001100110011
31021210012010011
41012201030303
514213023232
61500115351
7313062145
oct106411463
937705104
1018486067
11a486946
126235b57
133aa3302
142652c95
151952547
hex11a1333

18486067 has 4 divisors (see below), whose sum is σ = 18498520. Its totient is φ = 18473616.

The previous prime is 18486053. The next prime is 18486077. The reversal of 18486067 is 76068481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76068481 = 283726813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18486067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18486077) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3642 + ... + 7087.

It is an arithmetic number, because the mean of its divisors is an integer number (4624630).

Almost surely, 218486067 is an apocalyptic number.

18486067 is a deficient number, since it is larger than the sum of its proper divisors (12453).

18486067 is a wasteful number, since it uses less digits than its factorization.

18486067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 18486067 is about 4299.5426500966. The cubic root of 18486067 is about 264.4122109114.

The spelling of 18486067 in words is "eighteen million, four hundred eighty-six thousand, sixty-seven".

Divisors: 1 1723 10729 18486067