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14221331 = 531511777
BaseRepresentation
bin110110010000…
…000000010011
3222202111222222
4312100000103
512120040311
61224451255
7231610415
oct66200023
928674888
1014221331
118033773
124919b2b
132c3c0b7
141c629b5
1513adadb
hexd90013

14221331 has 8 divisors (see below), whose sum is σ = 14593824. Its totient is φ = 13852800.

The previous prime is 14221327. The next prime is 14221387. The reversal of 14221331 is 13312241.

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 14221331 - 22 = 14221327 is a prime.

It is a super-2 number, since 2×142213312 = 404492510823122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14221321) 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, 7115 + ... + 8891.

It is an arithmetic number, because the mean of its divisors is an integer number (1824228).

Almost surely, 214221331 is an apocalyptic number.

14221331 is a deficient number, since it is larger than the sum of its proper divisors (372493).

14221331 is a wasteful number, since it uses less digits than its factorization.

14221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981.

The product of its digits is 144, while the sum is 17.

The square root of 14221331 is about 3771.1180039877. The cubic root of 14221331 is about 242.2776847982.

Adding to 14221331 its reverse (13312241), we get a palindrome (27533572).

The spelling of 14221331 in words is "fourteen million, two hundred twenty-one thousand, three hundred thirty-one".

Divisors: 1 53 151 1777 8003 94181 268327 14221331