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14118221 = 132115147
BaseRepresentation
bin110101110110…
…110101001101
3222120021120002
4311312311031
512103240341
61222334045
7231000665
oct65666515
928507502
1014118221
117a73257
12488a325
132c041a0
141c371a5
15138d29b
hexd76d4d

14118221 has 8 divisors (see below), whose sum is σ = 15279264. Its totient is φ = 12967920.

The previous prime is 14118199. The next prime is 14118239. The reversal of 14118221 is 12281141.

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 14118221 - 218 = 13856077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14118193 and 14118202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14118241) 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, 170 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (1909908).

Almost surely, 214118221 is an apocalyptic number.

It is an amenable number.

14118221 is a deficient number, since it is larger than the sum of its proper divisors (1161043).

14118221 is a wasteful number, since it uses less digits than its factorization.

14118221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371.

The product of its digits is 128, while the sum is 20.

The square root of 14118221 is about 3757.4221216148. The cubic root of 14118221 is about 241.6907291670.

Adding to 14118221 its reverse (12281141), we get a palindrome (26399362).

The spelling of 14118221 in words is "fourteen million, one hundred eighteen thousand, two hundred twenty-one".

Divisors: 1 13 211 2743 5147 66911 1086017 14118221