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12213333 = 32111943151
BaseRepresentation
bin101110100101…
…110001010101
3211222111112200
4232211301111
511111311313
61113435113
7205545246
oct56456125
924874480
1012213333
116992070
12410ba99
1326b8132
14189cccd
151113b73
hexba5c55

12213333 has 48 divisors (see below), whose sum is σ = 20866560. Its totient is φ = 6804000.

The previous prime is 12213329. The next prime is 12213347. The reversal of 12213333 is 33331221.

It is not a de Polignac number, because 12213333 - 22 = 12213329 is a prime.

12213333 is a modest number, since divided by 3333 gives 1221 as remainder.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213353) 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 47 ways as a sum of consecutive naturals, for example, 80808 + ... + 80958.

It is an arithmetic number, because the mean of its divisors is an integer number (434720).

Almost surely, 212213333 is an apocalyptic number.

It is an amenable number.

12213333 is a deficient number, since it is larger than the sum of its proper divisors (8653227).

12213333 is a wasteful number, since it uses less digits than its factorization.

12213333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 227 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 12213333 is about 3494.7579315312. The cubic root of 12213333 is about 230.2915835585.

Adding to 12213333 its reverse (33331221), we get a palindrome (45544554).

It can be divided in two parts, 1221 and 3333, that added together give a palindrome (4554).

The spelling of 12213333 in words is "twelve million, two hundred thirteen thousand, three hundred thirty-three".

Divisors: 1 3 9 11 19 33 43 57 99 129 151 171 209 387 453 473 627 817 1359 1419 1661 1881 2451 2869 4257 4983 6493 7353 8607 8987 14949 19479 25821 26961 31559 58437 71423 80883 94677 123367 214269 284031 370101 642807 1110303 1357037 4071111 12213333