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14421213 = 33796761
BaseRepresentation
bin110111000000…
…110011011101
31000010200012000
4313000303131
512142434323
61233032513
7233402232
oct67006335
930120160
1014421213
11815a964
1249b5739
132cac081
141cb5789
1513ece43
hexdc0cdd

14421213 has 16 divisors (see below), whose sum is σ = 21638400. Its totient is φ = 9491040.

The previous prime is 14421203. The next prime is 14421221. The reversal of 14421213 is 31212441.

It is not a de Polignac number, because 14421213 - 25 = 14421181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14421203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248 + ... + 5513.

It is an arithmetic number, because the mean of its divisors is an integer number (1352400).

Almost surely, 214421213 is an apocalyptic number.

It is an amenable number.

14421213 is a deficient number, since it is larger than the sum of its proper divisors (7217187).

14421213 is an equidigital number, since it uses as much as digits as its factorization.

14421213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6849 (or 6843 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 14421213 is about 3797.5272217589. The cubic root of 14421213 is about 243.4074857930.

Adding to 14421213 its reverse (31212441), we get a palindrome (45633654).

The spelling of 14421213 in words is "fourteen million, four hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 3 9 27 79 237 711 2133 6761 20283 60849 182547 534119 1602357 4807071 14421213