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105423055225 = 524216922209
BaseRepresentation
bin110001000101110110…
…1000010100101111001
3101002010010002002110221
41202023231002211321
53211401300231400
6120233005540041
710421324120065
oct1421355024571
9332103062427
10105423055225
1140789625824
1218521b74621
139c311c2867
1451613a8aa5
152b203aac1a
hex188bb42979

105423055225 has 6 divisors (see below), whose sum is σ = 130724588510. Its totient is φ = 84338444160.

The previous prime is 105423055223. The next prime is 105423055229. The reversal of 105423055225 is 522550324501.

It can be written as a sum of positive squares in 3 ways, for example, as 104632441 + 105318422784 = 10229^2 + 324528^2 .

It is not a de Polignac number, because 105423055225 - 21 = 105423055223 is a prime.

It is a super-2 number, since 2×1054230552252 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105423055223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2108461080 + ... + 2108461129.

Almost surely, 2105423055225 is an apocalyptic number.

It is an amenable number.

105423055225 is a deficient number, since it is larger than the sum of its proper divisors (25301533285).

105423055225 is an equidigital number, since it uses as much as digits as its factorization.

105423055225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216922219 (or 4216922214 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 105423055225 its reverse (522550324501), we get a palindrome (627973379726).

The spelling of 105423055225 in words is "one hundred five billion, four hundred twenty-three million, fifty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 4216922209 21084611045 105423055225