Base | Representation |
---|---|
bin | 1101101101011… |
… | …00001110011010 |
3 | 22000101121122100 |
4 | 12312230032122 |
5 | 213420001333 |
6 | 15224504230 |
7 | 2564325414 |
oct | 666541632 |
9 | 260347570 |
10 | 115000218 |
11 | 59a07403 |
12 | 3261b076 |
13 | 1aa96288 |
14 | 113b79b4 |
15 | a169213 |
hex | 6dac39a |
115000218 has 24 divisors (see below), whose sum is σ = 255902868. Its totient is φ = 37297152.
The previous prime is 115000183. The next prime is 115000219. The reversal of 115000218 is 812000511.
It can be written as a sum of positive squares in 2 ways, for example, as 112848129 + 2152089 = 10623^2 + 1467^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a self number, because there is not a number n which added to its sum of digits gives 115000218.
It is not an unprimeable number, because it can be changed into a prime (115000219) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85671 + ... + 87002.
Almost surely, 2115000218 is an apocalyptic number.
115000218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
115000218 is an abundant number, since it is smaller than the sum of its proper divisors (140902650).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115000218 is a wasteful number, since it uses less digits than its factorization.
115000218 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 172718 (or 172715 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 18.
The square root of 115000218 is about 10723.8154590612. The cubic root of 115000218 is about 486.2947203909.
Adding to 115000218 its reverse (812000511), we get a palindrome (927000729).
The spelling of 115000218 in words is "one hundred fifteen million, two hundred eighteen", and thus it is an aban number.
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