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105001223 is a prime number
BaseRepresentation
bin1100100001000…
…11000100000111
321022120121121012
412100203010013
5203340014343
614230312435
72413332005
oct620430407
9238517535
10105001223
11542a7a78
122b1b871b
13189a5002
14dd33a75
159341718
hex6423107

105001223 has 2 divisors, whose sum is σ = 105001224. Its totient is φ = 105001222.

The previous prime is 105001219. The next prime is 105001271. The reversal of 105001223 is 322100501.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (322100501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105001223 - 22 = 105001219 is a prime.

It is a super-2 number, since 2×1050012232 = 22050513662991458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105001198 and 105001207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105001213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500611 + 52500612.

It is an arithmetic number, because the mean of its divisors is an integer number (52500612).

Almost surely, 2105001223 is an apocalyptic number.

105001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

105001223 is an equidigital number, since it uses as much as digits as its factorization.

105001223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 105001223 is about 10247.0104420753. The cubic root of 105001223 is about 471.7712296880.

Adding to 105001223 its reverse (322100501), we get a palindrome (427101724).

The spelling of 105001223 in words is "one hundred five million, one thousand, two hundred twenty-three".