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10644213 = 33548071
BaseRepresentation
bin101000100110…
…101011110101
3202000210010010
4220212223311
510211103323
61020050433
7156321456
oct50465365
922023103
1010644213
116010178
123693a19
132288b68
1415b112d
15e03c93
hexa26af5

10644213 has 4 divisors (see below), whose sum is σ = 14192288. Its totient is φ = 7096140.

The previous prime is 10644211. The next prime is 10644229. The reversal of 10644213 is 31244601.

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.

It is not a de Polignac number, because 10644213 - 21 = 10644211 is a prime.

It is a super-2 number, since 2×106442132 = 226598540778738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10644213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774033 + ... + 1774038.

It is an arithmetic number, because the mean of its divisors is an integer number (3548072).

Almost surely, 210644213 is an apocalyptic number.

It is an amenable number.

10644213 is a deficient number, since it is larger than the sum of its proper divisors (3548075).

10644213 is an equidigital number, since it uses as much as digits as its factorization.

10644213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548074.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 10644213 is about 3262.5470111555. The cubic root of 10644213 is about 219.9739156402.

Adding to 10644213 its reverse (31244601), we get a palindrome (41888814).

The spelling of 10644213 in words is "ten million, six hundred forty-four thousand, two hundred thirteen".

Divisors: 1 3 3548071 10644213