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18414271 = 374710589
BaseRepresentation
bin100011000111…
…1101010111111
31021122112122001
41012033222333
514203224041
61454403131
7312342631
oct106175277
937575561
1018414271
11a437a07
1262004a7
133a79725
142634a51
15193b131
hex118fabf

18414271 has 8 divisors (see below), whose sum is σ = 19316160. Its totient is φ = 17533728.

The previous prime is 18414269. The next prime is 18414301. The reversal of 18414271 is 17241481.

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

It is a cyclic number.

It is not a de Polignac number, because 18414271 - 21 = 18414269 is a prime.

It is a super-2 number, since 2×184142712 = 678170752922882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3556 + ... + 7033.

It is an arithmetic number, because the mean of its divisors is an integer number (2414520).

Almost surely, 218414271 is an apocalyptic number.

18414271 is a deficient number, since it is larger than the sum of its proper divisors (901889).

18414271 is a wasteful number, since it uses less digits than its factorization.

18414271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10673.

The product of its digits is 1792, while the sum is 28.

The square root of 18414271 is about 4291.1852674989. The cubic root of 18414271 is about 264.0694596464.

The spelling of 18414271 in words is "eighteen million, four hundred fourteen thousand, two hundred seventy-one".

Divisors: 1 37 47 1739 10589 391793 497683 18414271