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10644223 = 67792011
BaseRepresentation
bin101000100110…
…101011111111
3202000210010111
4220212223333
510211103343
61020050451
7156321502
oct50465377
922023114
1010644223
116010187
123693a27
132288b75
1415b1139
15e03c9d
hexa26aff

10644223 has 8 divisors (see below), whose sum is σ = 10945280. Its totient is φ = 10347480.

The previous prime is 10644211. The next prime is 10644229. The reversal of 10644223 is 32244601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-10644223 is a prime.

It is a super-2 number, since 2×106442232 = 226598966547458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10644194 and 10644203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644229) 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, 4288 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (1368160).

Almost surely, 210644223 is an apocalyptic number.

10644223 is a deficient number, since it is larger than the sum of its proper divisors (301057).

10644223 is an equidigital number, since it uses as much as digits as its factorization.

10644223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 10644223 is about 3262.5485437002. The cubic root of 10644223 is about 219.9739845270.

Adding to 10644223 its reverse (32244601), we get a palindrome (42888824).

The spelling of 10644223 in words is "ten million, six hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 67 79 2011 5293 134737 158869 10644223