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105597841 = 821128621
BaseRepresentation
bin1100100101101…
…00101110010001
321100200221000011
412102310232101
5204013112331
614251154521
72421365266
oct622645621
9240627004
10105597841
1154675248
122b445a41
1318b5373b
141004b26d
15940d3b1
hex64b4b91

105597841 has 4 divisors (see below), whose sum is σ = 105727284. Its totient is φ = 105468400.

The previous prime is 105597797. The next prime is 105597847. The reversal of 105597841 is 148795501.

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: 148795501 = 353421517.

It can be written as a sum of positive squares in 2 ways, for example, as 18455616 + 87142225 = 4296^2 + 9335^2 .

It is a cyclic number.

It is not a de Polignac number, because 105597841 - 29 = 105597329 is a prime.

It is a super-2 number, since 2×1055978412 = 22301808047722562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105597794 and 105597803.

It is not an unprimeable number, because it can be changed into a prime (105597847) 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, 63490 + ... + 65131.

It is an arithmetic number, because the mean of its divisors is an integer number (26431821).

Almost surely, 2105597841 is an apocalyptic number.

It is an amenable number.

105597841 is a deficient number, since it is larger than the sum of its proper divisors (129443).

105597841 is an equidigital number, since it uses as much as digits as its factorization.

105597841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129442.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 105597841 is about 10276.0810136939. The cubic root of 105597841 is about 472.6630789323.

The spelling of 105597841 in words is "one hundred five million, five hundred ninety-seven thousand, eight hundred forty-one".

Divisors: 1 821 128621 105597841