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105300047 = 109196517
BaseRepresentation
bin1100100011011…
…00000001001111
321100010210111202
412101230001033
5203424100142
614240540115
72416015136
oct621540117
9240123452
10105300047
1154491536
122b32163b
1318a7b028
14ddb091d
1593a0032
hex646c04f

105300047 has 4 divisors (see below), whose sum is σ = 105397656. Its totient is φ = 105202440.

The previous prime is 105300043. The next prime is 105300053. The reversal of 105300047 is 740003501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740003501 = 3593205957.

It is a cyclic number.

It is not a de Polignac number, because 105300047 - 22 = 105300043 is a prime.

It is a super-2 number, since 2×1053000472 = 22176199796404418, 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 (105300043) 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, 47168 + ... + 49349.

It is an arithmetic number, because the mean of its divisors is an integer number (26349414).

Almost surely, 2105300047 is an apocalyptic number.

105300047 is a deficient number, since it is larger than the sum of its proper divisors (97609).

105300047 is an equidigital number, since it uses as much as digits as its factorization.

105300047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97608.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 105300047 is about 10261.5811159879. The cubic root of 105300047 is about 472.2183452467.

Adding to 105300047 its reverse (740003501), we get a palindrome (845303548).

The spelling of 105300047 in words is "one hundred five million, three hundred thousand, forty-seven".

Divisors: 1 1091 96517 105300047