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13320223 = 74740487
BaseRepresentation
bin110010110100…
…000000011111
3221001201220121
4302310000133
511402221343
61153255411
7221135320
oct62640037
927051817
1013320223
117578754
124564567
1329b4bb7
141aaa447
151281aed
hexcb401f

13320223 has 8 divisors (see below), whose sum is σ = 15547392. Its totient is φ = 11174136.

The previous prime is 13320221. The next prime is 13320233. The reversal of 13320223 is 32202331.

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 13320223 - 21 = 13320221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13320197 and 13320206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320221) 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 7 ways as a sum of consecutive naturals, for example, 19915 + ... + 20572.

It is an arithmetic number, because the mean of its divisors is an integer number (1943424).

Almost surely, 213320223 is an apocalyptic number.

13320223 is a deficient number, since it is larger than the sum of its proper divisors (2227169).

13320223 is an equidigital number, since it uses as much as digits as its factorization.

13320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40541.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13320223 is about 3649.6880688629. The cubic root of 13320223 is about 237.0484747172.

Adding to 13320223 its reverse (32202331), we get a palindrome (45522554).

It can be divided in two parts, 133202 and 23, that added together give a square (133225 = 3652).

The spelling of 13320223 in words is "thirteen million, three hundred twenty thousand, two hundred twenty-three".

Divisors: 1 7 47 329 40487 283409 1902889 13320223