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105245423 = 2292411907
BaseRepresentation
bin1100100010111…
…10101011101111
321100001000120122
412101132223233
5203420323143
614235435155
72415366653
oct621365357
9240030518
10105245423
1154454498
122b2b5abb
1318a5c1ca
14dd98a63
15938dc68
hex645eaef

105245423 has 8 divisors (see below), whose sum is σ = 106199280. Its totient is φ = 104296320.

The previous prime is 105245417. The next prime is 105245431. The reversal of 105245423 is 324542501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105245423 - 24 = 105245407 is a prime.

It is a super-2 number, since 2×1052454232 = 22153198124897858, 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 = 105245392 and 105245401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105295423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54236 + ... + 56142.

It is an arithmetic number, because the mean of its divisors is an integer number (13274910).

Almost surely, 2105245423 is an apocalyptic number.

105245423 is a deficient number, since it is larger than the sum of its proper divisors (953857).

105245423 is a wasteful number, since it uses less digits than its factorization.

105245423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 105245423 is about 10258.9191925855. The cubic root of 105245423 is about 472.1366772982.

Adding to 105245423 its reverse (324542501), we get a palindrome (429787924).

The spelling of 105245423 in words is "one hundred five million, two hundred forty-five thousand, four hundred twenty-three".

Divisors: 1 229 241 1907 55189 436703 459587 105245423