Base | Representation |
---|---|
bin | 111111001111110… |
… | …1000011010111001 |
3 | 12110220100000020201 |
4 | 1332133220122321 |
5 | 13321242034431 |
6 | 550330322201 |
7 | 103406403640 |
oct | 17637503271 |
9 | 5426300221 |
10 | 2122221241 |
11 | 999a36258 |
12 | 4b2889361 |
13 | 27a89b31a |
14 | 161bd2357 |
15 | c64a6461 |
hex | 7e7e86b9 |
2122221241 has 8 divisors (see below), whose sum is σ = 2428665984. Its totient is φ = 1816594080.
The previous prime is 2122221239. The next prime is 2122221259. The reversal of 2122221241 is 1421222212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2122221241 - 21 = 2122221239 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2122221341) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198820 + ... + 209221.
It is an arithmetic number, because the mean of its divisors is an integer number (303583248).
Almost surely, 22122221241 is an apocalyptic number.
It is an amenable number.
2122221241 is a deficient number, since it is larger than the sum of its proper divisors (306444743).
2122221241 is an equidigital number, since it uses as much as digits as its factorization.
2122221241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 408791.
The product of its digits is 256, while the sum is 19.
The square root of 2122221241 is about 46067.5725538040. The cubic root of 2122221241 is about 1285.0801609367.
Adding to 2122221241 its reverse (1421222212), we get a palindrome (3543443453).
The spelling of 2122221241 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred forty-one".
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