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105375817 = 239440903
BaseRepresentation
bin1100100011111…
…10100001001001
321100021122110001
412101332201021
5203434011232
614242323001
72416452061
oct621764111
9240248401
10105375817
1154533458
122b359461
1318aa6671
14ddd03a1
1593b76e7
hex647e849

105375817 has 4 divisors (see below), whose sum is σ = 105816960. Its totient is φ = 104934676.

The previous prime is 105375797. The next prime is 105375839. The reversal of 105375817 is 718573501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718573501 = 1129636469.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-105375817 is a prime.

It is a super-2 number, since 2×1053758172 = 22208125616834978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105375217) 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 3 ways as a sum of consecutive naturals, for example, 220213 + ... + 220690.

It is an arithmetic number, because the mean of its divisors is an integer number (26454240).

Almost surely, 2105375817 is an apocalyptic number.

It is an amenable number.

105375817 is a deficient number, since it is larger than the sum of its proper divisors (441143).

105375817 is an equidigital number, since it uses as much as digits as its factorization.

105375817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441142.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 105375817 is about 10265.2723782664. The cubic root of 105375817 is about 472.3315816807.

The spelling of 105375817 in words is "one hundred five million, three hundred seventy-five thousand, eight hundred seventeen".

Divisors: 1 239 440903 105375817