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10642223 = 19560117
BaseRepresentation
bin101000100110…
…001100101111
3202000200101102
4220212030233
510211022343
61020033315
7156312614
oct50461457
922020342
1010642223
116009729
12369283b
132287c97
1415b050b
15e033b8
hexa2632f

10642223 has 4 divisors (see below), whose sum is σ = 11202360. Its totient is φ = 10082088.

The previous prime is 10642211. The next prime is 10642231. The reversal of 10642223 is 32224601.

10642223 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 32224601 = 263122527.

It is a cyclic number.

It is not a de Polignac number, because 10642223 - 210 = 10641199 is a prime.

It is a super-2 number, since 2×106422232 = 226513820763458, 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 = 10642195 and 10642204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10642253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280040 + ... + 280077.

It is an arithmetic number, because the mean of its divisors is an integer number (2800590).

Almost surely, 210642223 is an apocalyptic number.

10642223 is a deficient number, since it is larger than the sum of its proper divisors (560137).

10642223 is an equidigital number, since it uses as much as digits as its factorization.

10642223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560136.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 10642223 is about 3262.2420204516. The cubic root of 10642223 is about 219.9602063012.

Adding to 10642223 its reverse (32224601), we get a palindrome (42866824).

The spelling of 10642223 in words is "ten million, six hundred forty-two thousand, two hundred twenty-three".

Divisors: 1 19 560117 10642223