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115801085 = 5181199643
BaseRepresentation
bin1101110011011…
…11101111111101
322001220022020002
412321233233331
5214121113320
615254004045
72604202331
oct671575775
9261808202
10115801085
115a404084
1232946625
131acb696a
14115457c1
15a276675
hex6e6fbfd

115801085 has 16 divisors (see below), whose sum is σ = 140649600. Its totient is φ = 91523520.

The previous prime is 115801079. The next prime is 115801111. The reversal of 115801085 is 580108511.

It is a de Polignac number, because none of the positive numbers 2k-115801085 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179774 + ... + 180416.

It is an arithmetic number, because the mean of its divisors is an integer number (8790600).

Almost surely, 2115801085 is an apocalyptic number.

It is an amenable number.

115801085 is a deficient number, since it is larger than the sum of its proper divisors (24848515).

115801085 is a wasteful number, since it uses less digits than its factorization.

115801085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 115801085 is about 10761.0912550726. The cubic root of 115801085 is about 487.4209698757.

Adding to 115801085 its reverse (580108511), we get a palindrome (695909596).

The spelling of 115801085 in words is "one hundred fifteen million, eight hundred one thousand, eighty-five".

Divisors: 1 5 181 199 643 905 995 3215 36019 116383 127957 180095 581915 639785 23160217 115801085