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105308911 = 1974091307
BaseRepresentation
bin1100100011011…
…10001011101111
321100011020200001
412101232023233
5203424341121
614241045131
72416053031
oct621561357
9240136601
10105308911
1154498164
122b3267a7
1318a82086
14ddb3c51
1593a2991
hex646e2ef

105308911 has 8 divisors (see below), whose sum is σ = 106183440. Its totient is φ = 104438208.

The previous prime is 105308899. The next prime is 105308939. The reversal of 105308911 is 119803501.

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 105308911 - 27 = 105308783 is a prime.

It is a super-2 number, since 2×1053089112 = 22179933472011842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105308911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105308941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79920 + ... + 81226.

It is an arithmetic number, because the mean of its divisors is an integer number (13272930).

Almost surely, 2105308911 is an apocalyptic number.

105308911 is a deficient number, since it is larger than the sum of its proper divisors (874529).

105308911 is a wasteful number, since it uses less digits than its factorization.

105308911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 105308911 is about 10262.0130091518. The cubic root of 105308911 is about 472.2315950855.

The spelling of 105308911 in words is "one hundred five million, three hundred eight thousand, nine hundred eleven".

Divisors: 1 197 409 1307 80573 257479 534563 105308911