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105310807 = 715044401
BaseRepresentation
bin1100100011011…
…10101001010111
321100011100021021
412101232221113
5203424421212
614241102011
72416061410
oct621565127
9240140237
10105310807
1154499628
122b327907
1318a82bb4
14ddb4807
1593a3307
hex646ea57

105310807 has 4 divisors (see below), whose sum is σ = 120355216. Its totient is φ = 90266400.

The previous prime is 105310759. The next prime is 105310817. The reversal of 105310807 is 708013501.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-105310807 is a prime.

It is a super-2 number, since 2×1053108072 = 22180732141982498, 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 (105310817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7522194 + ... + 7522207.

It is an arithmetic number, because the mean of its divisors is an integer number (30088804).

Almost surely, 2105310807 is an apocalyptic number.

105310807 is a deficient number, since it is larger than the sum of its proper divisors (15044409).

105310807 is an equidigital number, since it uses as much as digits as its factorization.

105310807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15044408.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 105310807 is about 10262.1053882719. The cubic root of 105310807 is about 472.2344291152.

The spelling of 105310807 in words is "one hundred five million, three hundred ten thousand, eight hundred seven".

Divisors: 1 7 15044401 105310807