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12320135 = 54315717
BaseRepresentation
bin101110111111…
…110110000111
3212011221001022
4232333312013
511123221020
61120021355
7206501522
oct56776607
925157038
1012320135
116a55333
12416185b
132724929
1418c9bb9
151135625
hexbbfd87

12320135 has 8 divisors (see below), whose sum is σ = 14821056. Its totient is φ = 9831520.

The previous prime is 12320123. The next prime is 12320141. The reversal of 12320135 is 53102321.

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

It is not a de Polignac number, because 12320135 - 26 = 12320071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (1852632).

Almost surely, 212320135 is an apocalyptic number.

12320135 is a deficient number, since it is larger than the sum of its proper divisors (2500921).

12320135 is an equidigital number, since it uses as much as digits as its factorization.

12320135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 12320135 is about 3510.0049857514. The cubic root of 12320135 is about 230.9609136594.

Adding to 12320135 its reverse (53102321), we get a palindrome (65422456).

The spelling of 12320135 in words is "twelve million, three hundred twenty thousand, one hundred thirty-five".

Divisors: 1 5 431 2155 5717 28585 2464027 12320135