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22418014 = 211209007
BaseRepresentation
bin101010110000…
…1001001011110
31120011221201211
41111201021132
521214334024
62120255034
7361356433
oct125411136
946157654
1022418014
1111721a93
12761147a
13484bbc8
142d97b8a
151e7c594
hex156125e

22418014 has 4 divisors (see below), whose sum is σ = 33627024. Its totient is φ = 11209006.

The previous prime is 22418003. The next prime is 22418017. The reversal of 22418014 is 41081422.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22418017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604502 + ... + 5604505.

It is an arithmetic number, because the mean of its divisors is an integer number (8406756).

Almost surely, 222418014 is an apocalyptic number.

22418014 is a deficient number, since it is larger than the sum of its proper divisors (11209010).

22418014 is a wasteful number, since it uses less digits than its factorization.

22418014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11209009.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 22418014 is about 4734.7665201148. The cubic root of 22418014 is about 281.9674945348.

Adding to 22418014 its reverse (41081422), we get a palindrome (63499436).

The spelling of 22418014 in words is "twenty-two million, four hundred eighteen thousand, fourteen".

Divisors: 1 2 11209007 22418014