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13223307 = 35937433
BaseRepresentation
bin110010011100…
…010110001011
3220212210222010
4302130112023
511341121212
61151231003
7220252626
oct62342613
926783863
1013223307
117511959
124518463
13297ca56
141a82dbd
15126303c
hexc9c58b

13223307 has 8 divisors (see below), whose sum is σ = 17663184. Its totient is φ = 8799488.

The previous prime is 13223299. The next prime is 13223323. The reversal of 13223307 is 70332231.

13223307 is digitally balanced in base 2 and base 4, because in such bases 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 13223307 - 23 = 13223299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13223347) 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, 1938 + ... + 5495.

It is an arithmetic number, because the mean of its divisors is an integer number (2207898).

Almost surely, 213223307 is an apocalyptic number.

13223307 is a deficient number, since it is larger than the sum of its proper divisors (4439877).

13223307 is an equidigital number, since it uses as much as digits as its factorization.

13223307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 13223307 is about 3636.3865306097. The cubic root of 13223307 is about 236.4721646891.

Adding to 13223307 its reverse (70332231), we get a palindrome (83555538).

It can be divided in two parts, 13223 and 307, that added together give a triangular number (13530 = T164).

The spelling of 13223307 in words is "thirteen million, two hundred twenty-three thousand, three hundred seven".

Divisors: 1 3 593 1779 7433 22299 4407769 13223307