| Base | Representation |
|---|---|
| bin | 1101101110011… |
| … | …00010000011100 |
| 3 | 22000122021121200 |
| 4 | 12313030100130 |
| 5 | 213433201140 |
| 6 | 15231355500 |
| 7 | 2565413055 |
| oct | 667142034 |
| 9 | 260567550 |
| 10 | 115131420 |
| 11 | 59a96a38 |
| 12 | 32682b90 |
| 13 | 1ab10c01 |
| 14 | 1140d72c |
| 15 | a193030 |
| hex | 6dcc41c |
115131420 has 144 divisors (see below), whose sum is σ = 365994720. Its totient is φ = 29265408.
The previous prime is 115131409. The next prime is 115131433. The reversal of 115131420 is 24131511.
115131420 is a `hidden beast` number, since 11 + 513 + 142 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 115131393 and 115131402.
It is a congruent number.
It is an unprimeable number.
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 47 ways as a sum of consecutive naturals, for example, 392794 + ... + 393086.
It is an arithmetic number, because the mean of its divisors is an integer number (2541630).
Almost surely, 2115131420 is an apocalyptic number.
115131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 115131420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182997360).
115131420 is an abundant number, since it is smaller than the sum of its proper divisors (250863300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115131420 is a wasteful number, since it uses less digits than its factorization.
115131420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 404 (or 399 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 115131420 is about 10729.9310342611. The cubic root of 115131420 is about 486.4795855227.
Adding to 115131420 its reverse (24131511), we get a palindrome (139262931).
Subtracting from 115131420 its reverse (24131511), we obtain a palindrome (90999909).
The spelling of 115131420 in words is "one hundred fifteen million, one hundred thirty-one thousand, four hundred twenty".
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