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12803321 = 19976947
BaseRepresentation
bin110000110101…
…110011111001
3220002110212002
4300311303321
511234201241
61134230345
7213553316
oct60656371
926073762
1012803321
117255363
1243553b5
13286383b
1419b3d0d
1511cd89b
hexc35cf9

12803321 has 8 divisors (see below), whose sum is σ = 13618080. Its totient is φ = 12002688.

The previous prime is 12803291. The next prime is 12803327. The reversal of 12803321 is 12330821.

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 12803321 - 214 = 12786937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12803293 and 12803302.

It is not an unprimeable number, because it can be changed into a prime (12803327) 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, 1631 + ... + 5316.

It is an arithmetic number, because the mean of its divisors is an integer number (1702260).

Almost surely, 212803321 is an apocalyptic number.

It is an amenable number.

12803321 is a deficient number, since it is larger than the sum of its proper divisors (814759).

12803321 is an equidigital number, since it uses as much as digits as its factorization.

12803321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7063.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12803321 is about 3578.1728577586. The cubic root of 12803321 is about 233.9416478554.

The spelling of 12803321 in words is "twelve million, eight hundred three thousand, three hundred twenty-one".

Divisors: 1 19 97 1843 6947 131993 673859 12803321