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18064495 = 53612899
BaseRepresentation
bin100010011101…
…0010001101111
31020222202211101
41010322101233
514111030440
61443103531
7306355111
oct104722157
936882741
1018064495
11a219139
126071ba7
133986467
1425833b1
1518bc69a
hex113a46f

18064495 has 4 divisors (see below), whose sum is σ = 21677400. Its totient is φ = 14451592.

The previous prime is 18064481. The next prime is 18064511. The reversal of 18064495 is 59446081.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18064495 - 27 = 18064367 is a prime.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1806445 + ... + 1806454.

It is an arithmetic number, because the mean of its divisors is an integer number (5419350).

Almost surely, 218064495 is an apocalyptic number.

18064495 is a deficient number, since it is larger than the sum of its proper divisors (3612905).

18064495 is an equidigital number, since it uses as much as digits as its factorization.

18064495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612904.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 18064495 is about 4250.2346994019. The cubic root of 18064495 is about 262.3867750545.

The spelling of 18064495 in words is "eighteen million, sixty-four thousand, four hundred ninety-five".

Divisors: 1 5 3612899 18064495