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12301321 = 61201661
BaseRepresentation
bin101110111011…
…010000001001
3212010222020111
4232323100021
511122120241
61115354321
7206362624
oct56732011
925128214
1012301321
116a4218a
1241529a1
1327191b6
1418c2dbb
15112ec81
hexbbb409

12301321 has 4 divisors (see below), whose sum is σ = 12503044. Its totient is φ = 12099600.

The previous prime is 12301309. The next prime is 12301339. The reversal of 12301321 is 12310321.

12301321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2131600 + 10169721 = 1460^2 + 3189^2 .

It is a cyclic number.

It is not a de Polignac number, because 12301321 - 219 = 11777033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12301301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100770 + ... + 100891.

It is an arithmetic number, because the mean of its divisors is an integer number (3125761).

Almost surely, 212301321 is an apocalyptic number.

It is an amenable number.

12301321 is a deficient number, since it is larger than the sum of its proper divisors (201723).

12301321 is an equidigital number, since it uses as much as digits as its factorization.

12301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201722.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12301321 is about 3507.3239086232. The cubic root of 12301321 is about 230.8432874483.

Adding to 12301321 its reverse (12310321), we get a palindrome (24611642).

The spelling of 12301321 in words is "twelve million, three hundred one thousand, three hundred twenty-one".

Divisors: 1 61 201661 12301321