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10231321 = 88311587
BaseRepresentation
bin100111000001…
…111000011001
3201020210201211
4213001320121
510104400241
61003143121
7152651632
oct47017031
921223654
1010231321
115858a41
123514aa1
132172c49
141504889
15d71781
hex9c1e19

10231321 has 4 divisors (see below), whose sum is σ = 10243792. Its totient is φ = 10218852.

The previous prime is 10231303. The next prime is 10231337. The reversal of 10231321 is 12313201.

10231321 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: 12313201 = 47261983.

It is a cyclic number.

It is not a de Polignac number, because 10231321 - 29 = 10230809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10231301) 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, 4911 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (2560948).

Almost surely, 210231321 is an apocalyptic number.

It is an amenable number.

10231321 is a deficient number, since it is larger than the sum of its proper divisors (12471).

10231321 is an equidigital number, since it uses as much as digits as its factorization.

10231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12470.

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

The square root of 10231321 is about 3198.6436187859. The cubic root of 10231321 is about 217.0920419074.

Adding to 10231321 its reverse (12313201), we get a palindrome (22544522).

The spelling of 10231321 in words is "ten million, two hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 883 11587 10231321