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18246065 = 56415693
BaseRepresentation
bin100010110011…
…0100110110001
31021022222220012
41011212212301
514132333230
61451024305
7311042345
oct105464661
937288805
1018246065
11a3325a2
12613b095
133a1acb6
1425cd625
151906395
hex11669b1

18246065 has 8 divisors (see below), whose sum is σ = 21933288. Its totient is φ = 14571520.

The previous prime is 18246037. The next prime is 18246079. The reversal of 18246065 is 56064281.

It can be written as a sum of positive squares in 4 ways, for example, as 2053489 + 16192576 = 1433^2 + 4024^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18246065 - 214 = 18229681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (2741661).

Almost surely, 218246065 is an apocalyptic number.

It is an amenable number.

18246065 is a deficient number, since it is larger than the sum of its proper divisors (3687223).

18246065 is an equidigital number, since it uses as much as digits as its factorization.

18246065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18246065 is about 4271.5412909160. The cubic root of 18246065 is about 263.2629474153.

The spelling of 18246065 in words is "eighteen million, two hundred forty-six thousand, sixty-five".

Divisors: 1 5 641 3205 5693 28465 3649213 18246065