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105025043 = 439239237
BaseRepresentation
bin1100100001010…
…00111000010011
321022121211021102
412100220320103
5203341300133
614231015015
72413461314
oct620507023
9238554242
10105025043
1154313962
122b20a46b
13189b2ac6
14dd3c60b
1593487e8
hex6428e13

105025043 has 4 divisors (see below), whose sum is σ = 105264720. Its totient is φ = 104785368.

The previous prime is 105025033. The next prime is 105025057. The reversal of 105025043 is 340520501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105025043 - 212 = 105020947 is a prime.

It is a super-2 number, since 2×1050250432 = 22060519314303698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105025033) 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, 119180 + ... + 120057.

It is an arithmetic number, because the mean of its divisors is an integer number (26316180).

Almost surely, 2105025043 is an apocalyptic number.

105025043 is a deficient number, since it is larger than the sum of its proper divisors (239677).

105025043 is an equidigital number, since it uses as much as digits as its factorization.

105025043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239676.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 105025043 is about 10248.1726663830. The cubic root of 105025043 is about 471.8069014662.

Adding to 105025043 its reverse (340520501), we get a palindrome (445545544).

The spelling of 105025043 in words is "one hundred five million, twenty-five thousand, forty-three".

Divisors: 1 439 239237 105025043