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13223330 = 251322333
BaseRepresentation
bin110010011100…
…010110100010
3220212210222222
4302130112202
511341121310
61151231042
7220252661
oct62342642
926783888
1013223330
11751197a
124518482
13297ca73
141a82dd8
151263055
hexc9c5a2

13223330 has 8 divisors (see below), whose sum is σ = 23802012. Its totient is φ = 5289328.

The previous prime is 13223323. The next prime is 13223339. The reversal of 13223330 is 3332231.

It can be written as a sum of positive squares in 2 ways, for example, as 12411529 + 811801 = 3523^2 + 901^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13223299 and 13223308.

It is not an unprimeable number, because it can be changed into a prime (13223339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661157 + ... + 661176.

Almost surely, 213223330 is an apocalyptic number.

13223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13223330 is a deficient number, since it is larger than the sum of its proper divisors (10578682).

13223330 is a wasteful number, since it uses less digits than its factorization.

13223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322340.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 13223330 is about 3636.3896930885. The cubic root of 13223330 is about 236.4723017919.

Adding to 13223330 its reverse (3332231), we get a palindrome (16555561).

The spelling of 13223330 in words is "thirteen million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 1322333 2644666 6611665 13223330