| Base | Representation |
|---|---|
| bin | 1101101110111… |
| … | …01101111010110 |
| 3 | 22000202220211220 |
| 4 | 12313131233112 |
| 5 | 213442444110 |
| 6 | 15233111210 |
| 7 | 2566131615 |
| oct | 667355726 |
| 9 | 260686756 |
| 10 | 115203030 |
| 11 | 5a035818 |
| 12 | 326b8506 |
| 13 | 1ab37697 |
| 14 | 1142b87c |
| 15 | a1a9370 |
| hex | 6dddbd6 |
115203030 has 64 divisors (see below), whose sum is σ = 285163200. Its totient is φ = 29767680.
The previous prime is 115203029. The next prime is 115203031. The reversal of 115203030 is 30302511.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (115203029) and next prime (115203031).
It is a super-3 number, since 3×1152030303 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (115203031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281466 + ... + 281874.
It is an arithmetic number, because the mean of its divisors is an integer number (4455675).
Almost surely, 2115203030 is an apocalyptic number.
115203030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 115203030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142581600).
115203030 is an abundant number, since it is smaller than the sum of its proper divisors (169960170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115203030 is a wasteful number, since it uses less digits than its factorization.
115203030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 689.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 115203030 is about 10733.2674428619. The cubic root of 115203030 is about 486.5804255974.
Adding to 115203030 its reverse (30302511), we get a palindrome (145505541).
The spelling of 115203030 in words is "one hundred fifteen million, two hundred three thousand, thirty".
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