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10000321 = 31322591

10000321 has 4 divisors (see below), whose sum is σ = 10322944. Its totient is φ = 9677700.

The previous prime is 10000303. The next prime is 10000339. The reversal of 10000321 is 12300001.

Adding to 10000321 its reverse (12300001), we get a palindrome (22300322).

10000321 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12300001 = 71757143.

It is an interprime number because it is at equal distance from previous prime (10000303) and next prime (10000339).

It is a cyclic number.

It is not a de Polignac number, because 10000321 - 211 = 9998273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000121) 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 3 ways as a sum of consecutive naturals, for example, 161265 + ... + 161326.

It is an arithmetic number, because the mean of its divisors is an integer number (2580736).

Almost surely, 210000321 is an apocalyptic number.

It is an amenable number.

10000321 is a deficient number, since it is larger than the sum of its proper divisors (322623).

10000321 is an equidigital number, since it uses as much as digits as its factorization.

10000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322622.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 10000321 is about 3162.3284143175. The cubic root of 10000321 is about 215.4457742236.

The spelling of 10000321 in words is "ten million, three hundred twenty-one", and thus it is an aban number.

Divisors: 1 31 322591 10000321