Search a number
-
+
10561223 = 91111593
BaseRepresentation
bin101000010010…
…011011000111
3201212120021102
4220102123013
510200424343
61014210315
7155524511
oct50223307
921776242
1010561223
115a63892
12365399b
13225a15a
14158cbb1
15dd93b8
hexa126c7

10561223 has 4 divisors (see below), whose sum is σ = 10573728. Its totient is φ = 10548720.

The previous prime is 10561219. The next prime is 10561237. The reversal of 10561223 is 32216501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32216501 = 123126171.

It is a cyclic number.

It is not a de Polignac number, because 10561223 - 22 = 10561219 is a prime.

It is a super-2 number, since 2×105612232 = 223078862511458, 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 = 10561195 and 10561204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561253) 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, 4886 + ... + 6707.

It is an arithmetic number, because the mean of its divisors is an integer number (2643432).

Almost surely, 210561223 is an apocalyptic number.

10561223 is a deficient number, since it is larger than the sum of its proper divisors (12505).

10561223 is an equidigital number, since it uses as much as digits as its factorization.

10561223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12504.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 10561223 is about 3249.8035325232. The cubic root of 10561223 is about 219.4007313643.

Adding to 10561223 its reverse (32216501), we get a palindrome (42777724).

The spelling of 10561223 in words is "ten million, five hundred sixty-one thousand, two hundred twenty-three".

Divisors: 1 911 11593 10561223