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13214311 = 112235387
BaseRepresentation
bin110010011010…
…001001100111
3220212100121221
4302122021213
511340324221
61151121211
7220214455
oct62321147
926770557
1013214311
117506120
124513207
132978926
141a7d9d5
151260541
hexc9a267

13214311 has 8 divisors (see below), whose sum is σ = 14482944. Its totient is φ = 11956920.

The previous prime is 13214303. The next prime is 13214323. The reversal of 13214311 is 11341231.

13214311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13214311 - 23 = 13214303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13214371) 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, 241 + ... + 5146.

It is an arithmetic number, because the mean of its divisors is an integer number (1810368).

Almost surely, 213214311 is an apocalyptic number.

13214311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13214311 is a deficient number, since it is larger than the sum of its proper divisors (1268633).

13214311 is a wasteful number, since it uses less digits than its factorization.

13214311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5621.

The product of its digits is 72, while the sum is 16.

The square root of 13214311 is about 3635.1493779486. The cubic root of 13214311 is about 236.4185274210.

Adding to 13214311 its reverse (11341231), we get a palindrome (24555542).

Subtracting from 13214311 its reverse (11341231), we obtain a triangular number (1873080 = T1935).

The spelling of 13214311 in words is "thirteen million, two hundred fourteen thousand, three hundred eleven".

Divisors: 1 11 223 2453 5387 59257 1201301 13214311