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105112135 = 521022427
BaseRepresentation
bin1100100001111…
…10001001000111
321022210020202001
412100332021013
5203402042020
614232530131
72414303242
oct620761107
9238706661
10105112135
1154373337
122b250947
1318a1363b
14dd62259
15936450a
hex643e247

105112135 has 4 divisors (see below), whose sum is σ = 126134568. Its totient is φ = 84089704.

The previous prime is 105112127. The next prime is 105112141. The reversal of 105112135 is 531211501.

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 105112135 - 23 = 105112127 is a prime.

It is a super-2 number, since 2×1051121352 = 22097121848516450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10511209 + ... + 10511218.

It is an arithmetic number, because the mean of its divisors is an integer number (31533642).

Almost surely, 2105112135 is an apocalyptic number.

105112135 is a deficient number, since it is larger than the sum of its proper divisors (21022433).

105112135 is an equidigital number, since it uses as much as digits as its factorization.

105112135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022432.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 105112135 is about 10252.4209336137. The cubic root of 105112135 is about 471.9372806996.

Adding to 105112135 its reverse (531211501), we get a palindrome (636323636).

The spelling of 105112135 in words is "one hundred five million, one hundred twelve thousand, one hundred thirty-five".

Divisors: 1 5 21022427 105112135