| Base | Representation |
|---|---|
| bin | 111110111011000… |
| … | …0001000111000000 |
| 3 | 12110010210210000121 |
| 4 | 1331312001013000 |
| 5 | 13310443443240 |
| 6 | 545300430024 |
| 7 | 103214600335 |
| oct | 17566010700 |
| 9 | 5403723017 |
| 10 | 2111312320 |
| 11 | 993865217 |
| 12 | 4ab0a8314 |
| 13 | 27854bb40 |
| 14 | 16059298c |
| 15 | c554e04a |
| hex | 7dd811c0 |
2111312320 has 112 divisors (see below), whose sum is σ = 5430438720. Its totient is φ = 777240576.
The previous prime is 2111312309. The next prime is 2111312321. The reversal of 2111312320 is 232131112.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 2111312294 and 2111312303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2111312321) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2091976 + ... + 2092984.
It is an arithmetic number, because the mean of its divisors is an integer number (48486060).
Almost surely, 22111312320 is an apocalyptic number.
2111312320 is a gapful number since it is divisible by the number (20) 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 2111312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2715219360).
2111312320 is an abundant number, since it is smaller than the sum of its proper divisors (3319126400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2111312320 is a wasteful number, since it uses less digits than its factorization.
2111312320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1542 (or 1532 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 2111312320 is about 45949.0187055175. The cubic root of 2111312320 is about 1282.8744645328.
Adding to 2111312320 its reverse (232131112), we get a palindrome (2343443432).
It can be divided in two parts, 21113 and 12320, that added together give a palindrome (33433).
The spelling of 2111312320 in words is "two billion, one hundred eleven million, three hundred twelve thousand, three hundred twenty".
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