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105321101 = 810113001
BaseRepresentation
bin1100100011100…
…01001010001101
321100011212101112
412101301022031
5203430233401
614241221405
72416133414
oct621611215
9240155345
10105321101
11544a6336
122b331865
1318a877a2
14ddb847b
1593a63bb
hex647128d

105321101 has 4 divisors (see below), whose sum is σ = 105342204. Its totient is φ = 105300000.

The previous prime is 105321089. The next prime is 105321121. The reversal of 105321101 is 101123501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101123501 = 947106783.

It can be written as a sum of positive squares in 2 ways, for example, as 57365476 + 47955625 = 7574^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 105321101 - 26 = 105321037 is a prime.

It is a super-2 number, since 2×1053211012 = 22185068631704402, 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 (105321121) 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, 1601 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (26335551).

Almost surely, 2105321101 is an apocalyptic number.

It is an amenable number.

105321101 is a deficient number, since it is larger than the sum of its proper divisors (21103).

105321101 is an equidigital number, since it uses as much as digits as its factorization.

105321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21102.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 105321101 is about 10262.6069300154. The cubic root of 105321101 is about 472.2498153893.

Adding to 105321101 its reverse (101123501), we get a palindrome (206444602).

The spelling of 105321101 in words is "one hundred five million, three hundred twenty-one thousand, one hundred one".

Divisors: 1 8101 13001 105321101