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18074063 = 72582009
BaseRepresentation
bin100010011110…
…0100111001111
31021000020221202
41010330213033
514111332223
61443220115
7306425030
oct104744717
937006852
1018074063
11a225347
12607763b
13398a917
142586a87
1518c0428
hex113c9cf

18074063 has 4 divisors (see below), whose sum is σ = 20656080. Its totient is φ = 15492048.

The previous prime is 18074059. The next prime is 18074083. The reversal of 18074063 is 36047081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36047081 = 75149583.

It is a cyclic number.

It is not a de Polignac number, because 18074063 - 22 = 18074059 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 (18074033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290998 + ... + 1291011.

It is an arithmetic number, because the mean of its divisors is an integer number (5164020).

Almost surely, 218074063 is an apocalyptic number.

18074063 is a deficient number, since it is larger than the sum of its proper divisors (2582017).

18074063 is an equidigital number, since it uses as much as digits as its factorization.

18074063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582016.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 18074063 is about 4251.3601352979. The cubic root of 18074063 is about 262.4330919421.

The spelling of 18074063 in words is "eighteen million, seventy-four thousand, sixty-three".

Divisors: 1 7 2582009 18074063