| Base | Representation |
|---|---|
| bin | 111110111011000… |
| … | …1000111001011101 |
| 3 | 12110010212101210010 |
| 4 | 1331312020321131 |
| 5 | 13311001003341 |
| 6 | 545301233433 |
| 7 | 103215062340 |
| oct | 17566107135 |
| 9 | 5403771703 |
| 10 | 2111344221 |
| 11 | 993887188 |
| 12 | 4ab102879 |
| 13 | 27856050c |
| 14 | 1605a0457 |
| 15 | c5558716 |
| hex | 7dd88e5d |
2111344221 has 8 divisors (see below), whose sum is σ = 3217286464. Its totient is φ = 1206482400.
The previous prime is 2111344211. The next prime is 2111344231. The reversal of 2111344221 is 1224431112.
It is an interprime number because it is at equal distance from previous prime (2111344211) and next prime (2111344231).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2111344221 - 29 = 2111343709 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 100540201 = 2111344221 / (2 + 1 + 1 + 1 + 3 + 4 + 4 + 2 + 2 + 1).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2111344211) 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 7 ways as a sum of consecutive naturals, for example, 50270080 + ... + 50270121.
It is an arithmetic number, because the mean of its divisors is an integer number (402160808).
Almost surely, 22111344221 is an apocalyptic number.
2111344221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2111344221 is a deficient number, since it is larger than the sum of its proper divisors (1105942243).
2111344221 is a wasteful number, since it uses less digits than its factorization.
2111344221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100540211.
The product of its digits is 384, while the sum is 21.
The square root of 2111344221 is about 45949.3658389319. The cubic root of 2111344221 is about 1282.8809257231.
Adding to 2111344221 its reverse (1224431112), we get a palindrome (3335775333).
The spelling of 2111344221 in words is "two billion, one hundred eleven million, three hundred forty-four thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •