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18634214 = 229331799
BaseRepresentation
bin100011100010…
…1010111100110
31022001201100002
41013011113212
514232243324
61503221302
7314250104
oct107052746
938051302
1018634214
11a578185
1262a7832
133b25881
142690c74
1519813ae
hex11c55e6

18634214 has 8 divisors (see below), whose sum is σ = 28047600. Its totient is φ = 9285016.

The previous prime is 18634207. The next prime is 18634229. The reversal of 18634214 is 41243681.

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

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, 15314 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (3505950).

Almost surely, 218634214 is an apocalyptic number.

18634214 is a deficient number, since it is larger than the sum of its proper divisors (9413386).

18634214 is a wasteful number, since it uses less digits than its factorization.

18634214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094.

The product of its digits is 4608, while the sum is 29.

The square root of 18634214 is about 4316.7364987917. The cubic root of 18634214 is about 265.1166639520.

Adding to 18634214 its reverse (41243681), we get a palindrome (59877895).

The spelling of 18634214 in words is "eighteen million, six hundred thirty-four thousand, two hundred fourteen".

Divisors: 1 2 293 586 31799 63598 9317107 18634214