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13618214 = 217339359
BaseRepresentation
bin110011111100…
…110000100110
3221121212200022
4303330300212
511441240324
61203515142
7223516151
oct63746046
927555608
1013618214
117761625
124688ab2
132a8a71c
141b46c98
1512e005e
hexcfcc26

13618214 has 8 divisors (see below), whose sum is σ = 20545920. Its totient is φ = 6769576.

The previous prime is 13618201. The next prime is 13618217. The reversal of 13618214 is 41281631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13618217) by changing a digit.

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, 19334 + ... + 20025.

It is an arithmetic number, because the mean of its divisors is an integer number (2568240).

Almost surely, 213618214 is an apocalyptic number.

13618214 is a deficient number, since it is larger than the sum of its proper divisors (6927706).

13618214 is a wasteful number, since it uses less digits than its factorization.

13618214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39534.

The product of its digits is 1152, while the sum is 26.

The square root of 13618214 is about 3690.2864387470. The cubic root of 13618214 is about 238.8031501782.

Adding to 13618214 its reverse (41281631), we get a palindrome (54899845).

The spelling of 13618214 in words is "thirteen million, six hundred eighteen thousand, two hundred fourteen".

Divisors: 1 2 173 346 39359 78718 6809107 13618214