| Base | Representation |
|---|---|
| bin | 1101101110010… |
| … | …00101111011100 |
| 3 | 22000121112212100 |
| 4 | 12313020233130 |
| 5 | 213432221040 |
| 6 | 15231205100 |
| 7 | 2565323064 |
| oct | 667105734 |
| 9 | 260545770 |
| 10 | 115117020 |
| 11 | 59a87137 |
| 12 | 32676790 |
| 13 | 1ab074a5 |
| 14 | 114083a4 |
| 15 | a18db30 |
| hex | 6dc8bdc |
115117020 has 144 divisors (see below), whose sum is σ = 363242880. Its totient is φ = 29490048.
The previous prime is 115117019. The next prime is 115117021. The reversal of 115117020 is 20711511.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (115117019) and next prime (115117021).
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 = 115116984 and 115117002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (115117021) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 828111 + ... + 828249.
It is an arithmetic number, because the mean of its divisors is an integer number (2522520).
Almost surely, 2115117020 is an apocalyptic number.
115117020 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 115117020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181621440).
115117020 is an abundant number, since it is smaller than the sum of its proper divisors (248125860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115117020 is a wasteful number, since it uses less digits than its factorization.
115117020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 304 (or 299 counting only the distinct ones).
The product of its (nonzero) digits is 70, while the sum is 18.
The square root of 115117020 is about 10729.2599931216. The cubic root of 115117020 is about 486.4593026202.
Adding to 115117020 its reverse (20711511), we get a palindrome (135828531).
The spelling of 115117020 in words is "one hundred fifteen million, one hundred seventeen thousand, twenty".
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