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14221131 = 320532309
BaseRepresentation
bin110110001111…
…111101001011
3222202111201120
4312033331023
512120034011
61224450323
7231610011
oct66177513
928674646
1014221131
118033601
1249199a3
132c3bc92
141c628b1
1513ada06
hexd8ff4b

14221131 has 8 divisors (see below), whose sum is σ = 18978960. Its totient is φ = 9472032.

The previous prime is 14221127. The next prime is 14221133. The reversal of 14221131 is 13112241.

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

It is not a de Polignac number, because 14221131 - 22 = 14221127 is a prime.

It is a super-2 number, since 2×142211312 = 404481133838322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14221131.

It is not an unprimeable number, because it can be changed into a prime (14221133) 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, 5005 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (2372370).

Almost surely, 214221131 is an apocalyptic number.

14221131 is a deficient number, since it is larger than the sum of its proper divisors (4757829).

14221131 is a wasteful number, since it uses less digits than its factorization.

14221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365.

The product of its digits is 48, while the sum is 15.

The square root of 14221131 is about 3771.0914865593. The cubic root of 14221131 is about 242.2765490451.

Adding to 14221131 its reverse (13112241), we get a palindrome (27333372).

The spelling of 14221131 in words is "fourteen million, two hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 2053 2309 6159 6927 4740377 14221131