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105412105 = 5236713681
BaseRepresentation
bin1100100100001…
…11011000001001
321100100111020001
412102013120021
5203441141410
614243203001
72416662631
oct622073011
9240314201
10105412105
1154558747
122b376461
1318aba036
14dddd6c1
1593c333a
hex6487609

105412105 has 16 divisors (see below), whose sum is σ = 133974144. Its totient is φ = 79453440.

The previous prime is 105412103. The next prime is 105412127. The reversal of 105412105 is 501214501.

It is not a de Polignac number, because 105412105 - 21 = 105412103 is a prime.

It is a super-2 number, since 2×1054121052 = 22223423761062050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105412103) 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 15 ways as a sum of consecutive naturals, for example, 865 + ... + 14545.

It is an arithmetic number, because the mean of its divisors is an integer number (8373384).

Almost surely, 2105412105 is an apocalyptic number.

It is an amenable number.

105412105 is a deficient number, since it is larger than the sum of its proper divisors (28562039).

105412105 is a wasteful number, since it uses less digits than its factorization.

105412105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 105412105 is about 10267.0397388926. The cubic root of 105412105 is about 472.3857939968.

Adding to 105412105 its reverse (501214501), we get a palindrome (606626606).

The spelling of 105412105 in words is "one hundred five million, four hundred twelve thousand, one hundred five".

Divisors: 1 5 23 67 115 335 1541 7705 13681 68405 314663 916627 1573315 4583135 21082421 105412105