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105412111 = 723576389
BaseRepresentation
bin1100100100001…
…11011000001111
321100100111020021
412102013120033
5203441141421
614243203011
72416662640
oct622073017
9240314207
10105412111
1154558752
122b376467
1318aba03c
14dddd6c7
1593c3341
hex648760f

105412111 has 8 divisors (see below), whose sum is σ = 120540960. Its totient is φ = 90300768.

The previous prime is 105412103. The next prime is 105412127. The reversal of 105412111 is 111214501.

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 105412111 - 23 = 105412103 is a prime.

It is a super-2 number, since 2×1054121112 = 22223426290952642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105412711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13305 + ... + 19693.

It is an arithmetic number, because the mean of its divisors is an integer number (15067620).

Almost surely, 2105412111 is an apocalyptic number.

105412111 is a deficient number, since it is larger than the sum of its proper divisors (15128849).

105412111 is an equidigital number, since it uses as much as digits as its factorization.

105412111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8753.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 105412111 is about 10267.0400310898. The cubic root of 105412111 is about 472.3858029595.

Adding to 105412111 its reverse (111214501), we get a palindrome (216626612).

The spelling of 105412111 in words is "one hundred five million, four hundred twelve thousand, one hundred eleven".

Divisors: 1 7 2357 6389 16499 44723 15058873 105412111