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115731055 = 5112238317
BaseRepresentation
bin1101110010111…
…10101001101111
322001202202011101
412321132221233
5214111343210
615252303531
72603461216
oct671365157
9261682141
10115731055
115a366500
1232911ba7
131ac90b1b
141152807d
15a260a3a
hex6e5ea6f

115731055 has 24 divisors (see below), whose sum is σ = 159306336. Its totient is φ = 80498880.

The previous prime is 115731047. The next prime is 115731059. The reversal of 115731055 is 550137511.

It is not a de Polignac number, because 115731055 - 23 = 115731047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115731059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9757 + ... + 18073.

It is an arithmetic number, because the mean of its divisors is an integer number (6637764).

Almost surely, 2115731055 is an apocalyptic number.

115731055 is a deficient number, since it is larger than the sum of its proper divisors (43575281).

115731055 is a wasteful number, since it uses less digits than its factorization.

115731055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367 (or 8356 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 28.

The square root of 115731055 is about 10757.8369108292. The cubic root of 115731055 is about 487.3226951096.

Adding to 115731055 its reverse (550137511), we get a palindrome (665868566).

The spelling of 115731055 in words is "one hundred fifteen million, seven hundred thirty-one thousand, fifty-five".

Divisors: 1 5 11 23 55 115 121 253 605 1265 2783 8317 13915 41585 91487 191291 457435 956455 1006357 2104201 5031785 10521005 23146211 115731055