Search a number
-
+
115805023 = 2359611399
BaseRepresentation
bin1101110011100…
…00101101011111
322001220111121221
412321300231133
5214121230043
615254034211
72604216655
oct671605537
9261814557
10115805023
115a407034
1232948967
131acb86a9
1411546dd5
15a2778ed
hex6e70b5f

115805023 has 16 divisors (see below), whose sum is σ = 124992000. Its totient is φ = 107030880.

The previous prime is 115805021. The next prime is 115805051. The reversal of 115805023 is 320508511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115805023 - 21 = 115805021 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 (115805021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82078 + ... + 83476.

It is an arithmetic number, because the mean of its divisors is an integer number (7812000).

Almost surely, 2115805023 is an apocalyptic number.

115805023 is a deficient number, since it is larger than the sum of its proper divisors (9186977).

115805023 is a wasteful number, since it uses less digits than its factorization.

115805023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 115805023 is about 10761.2742275253. The cubic root of 115805023 is about 487.4264949881.

The spelling of 115805023 in words is "one hundred fifteen million, eight hundred five thousand, twenty-three".

Divisors: 1 23 59 61 1357 1399 1403 3599 32177 82541 82777 85339 1898443 1962797 5035001 115805023