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14323221 = 3211149971
BaseRepresentation
bin110110101000…
…111000010101
3222221200202200
4312220320111
512131320341
61230555113
7232513443
oct66507025
928850680
1014323221
1180a3280
124968a99
132c765a3
141c8bb93
1513cddb6
hexda8e15

14323221 has 24 divisors (see below), whose sum is σ = 22744800. Its totient is φ = 8613600.

The previous prime is 14323219. The next prime is 14323237. The reversal of 14323221 is 12232341.

14323221 = T150 + T151 + ... + T446.

14323221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14323221 - 21 = 14323219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14323194 and 14323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14323241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14266 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (947700).

Almost surely, 214323221 is an apocalyptic number.

14323221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14323221 is a deficient number, since it is larger than the sum of its proper divisors (8421579).

14323221 is a wasteful number, since it uses less digits than its factorization.

14323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1134 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 14323221 is about 3784.6031496050. The cubic root of 14323221 is about 242.8549151715.

Adding to 14323221 its reverse (12232341), we get a palindrome (26555562).

The spelling of 14323221 in words is "fourteen million, three hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 9 11 33 99 149 447 971 1341 1639 2913 4917 8739 10681 14751 32043 96129 144679 434037 1302111 1591469 4774407 14323221