Base | Representation |
---|---|
bin | 111111000011101… |
… | …1101100000111000 |
3 | 12110110102002201021 |
4 | 1332013131200320 |
5 | 13313131310422 |
6 | 545542432224 |
7 | 103301504155 |
oct | 17607354070 |
9 | 5413362637 |
10 | 2115885112 |
11 | 9963a8890 |
12 | 4b0732674 |
13 | 279490333 |
14 | 16102322c |
15 | c5b53dc7 |
hex | 7e1dd838 |
2115885112 has 32 divisors (see below), whose sum is σ = 4344833520. Its totient is φ = 958013440.
The previous prime is 2115885103. The next prime is 2115885119.
It is a happy number.
2115885112 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2115885119) 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 7 ways as a sum of consecutive naturals, for example, 24163 + ... + 69394.
Almost surely, 22115885112 is an apocalyptic number.
2115885112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
2115885112 is an abundant number, since it is smaller than the sum of its proper divisors (2228948408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2115885112 is a wasteful number, since it uses less digits than its factorization.
2115885112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93831 (or 93827 counting only the distinct ones).
The product of its digits is 6400, while the sum is 34.
The square root of 2115885112 is about 45998.7512004402. The cubic root of 2115885112 is about 1283.7999691629.
The spelling of 2115885112 in words is "two billion, one hundred fifteen million, eight hundred eighty-five thousand, one hundred twelve".
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