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115345 = 5172359
BaseRepresentation
bin11100001010010001
312212020001
4130022101
512142340
62250001
7660166
oct341221
9185201
10115345
117972a
1256901
1340669
143006d
152429a
hex1c291

115345 has 16 divisors (see below), whose sum is σ = 155520. Its totient is φ = 81664.

The previous prime is 115343. The next prime is 115361. The reversal of 115345 is 543511.

It is a cyclic number.

It is not a de Polignac number, because 115345 - 21 = 115343 is a prime.

115345 is a modest number, since divided by 345 gives 115 as remainder.

It is not an unprimeable number, because it can be changed into a prime (115343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926 + ... + 1984.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2115345 is an apocalyptic number.

It is an amenable number.

115345 is a deficient number, since it is larger than the sum of its proper divisors (40175).

115345 is a wasteful number, since it uses less digits than its factorization.

115345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104.

The product of its digits is 300, while the sum is 19.

The square root of 115345 is about 339.6247929701. The cubic root of 115345 is about 48.6780222037.

Adding to 115345 its reverse (543511), we get a palindrome (658856).

It can be divided in two parts, 11 and 5345, that added together give a triangular number (5356 = T103).

The spelling of 115345 in words is "one hundred fifteen thousand, three hundred forty-five".

Divisors: 1 5 17 23 59 85 115 295 391 1003 1357 1955 5015 6785 23069 115345