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13230705 = 35882047
BaseRepresentation
bin110010011110…
…001001110001
3220220012010010
4302132021301
511341340310
61151325133
7220313325
oct62361161
926805103
1013230705
117517474
1245207a9
132983227
141a85985
151265320
hexc9e271

13230705 has 8 divisors (see below), whose sum is σ = 21169152. Its totient is φ = 7056368.

The previous prime is 13230689. The next prime is 13230731. The reversal of 13230705 is 50703231.

It is a happy number.

13230705 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 13230705 - 24 = 13230689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441009 + ... + 441038.

It is an arithmetic number, because the mean of its divisors is an integer number (2646144).

Almost surely, 213230705 is an apocalyptic number.

13230705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13230705 is a deficient number, since it is larger than the sum of its proper divisors (7938447).

13230705 is an equidigital number, since it uses as much as digits as its factorization.

13230705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882055.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 13230705 is about 3637.4036069702. The cubic root of 13230705 is about 236.5162559019.

Adding to 13230705 its reverse (50703231), we get a palindrome (63933936).

The spelling of 13230705 in words is "thirteen million, two hundred thirty thousand, seven hundred five".

Divisors: 1 3 5 15 882047 2646141 4410235 13230705