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10520223 = 37232947
BaseRepresentation
bin101000001000…
…011010011111
3201210111000220
4220020122133
510143121343
61013252423
7155264130
oct50103237
921714026
1010520223
115a35aaa
123634113
1322445ac
14157bc87
15dcc183
hexa0869f

10520223 has 24 divisors (see below), whose sum is σ = 16775808. Its totient is φ = 5744112.

The previous prime is 10520219. The next prime is 10520227. The reversal of 10520223 is 32202501.

It is an interprime number because it is at equal distance from previous prime (10520219) and next prime (10520227).

It is not a de Polignac number, because 10520223 - 22 = 10520219 is a prime.

It is a super-2 number, since 2×105202232 = 221350183939458, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10520227) 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 23 ways as a sum of consecutive naturals, for example, 10636 + ... + 11582.

It is an arithmetic number, because the mean of its divisors is an integer number (698992).

Almost surely, 210520223 is an apocalyptic number.

10520223 is a deficient number, since it is larger than the sum of its proper divisors (6255585).

10520223 is an equidigital number, since it uses as much as digits as its factorization.

10520223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 10520223 is about 3243.4893247859. The cubic root of 10520223 is about 219.1164494012.

Adding to 10520223 its reverse (32202501), we get a palindrome (42722724).

The spelling of 10520223 in words is "ten million, five hundred twenty thousand, two hundred twenty-three".

Divisors: 1 3 7 21 23 69 161 483 529 947 1587 2841 3703 6629 11109 19887 21781 65343 152467 457401 500963 1502889 3506741 10520223