Base | Representation |
---|---|
bin | 111111001111110… |
… | …1101000110010101 |
3 | 12110220100222112111 |
4 | 1332133231012111 |
5 | 13321243143110 |
6 | 550330551021 |
7 | 103406513545 |
oct | 17637550625 |
9 | 5426328474 |
10 | 2122240405 |
11 | 999a4969a |
12 | 4b2898471 |
13 | 27a8a6c6c |
14 | 161bd9325 |
15 | c64abe8a |
hex | 7e7ed195 |
2122240405 has 8 divisors (see below), whose sum is σ = 2547207072. Its totient is φ = 1697446608.
The previous prime is 2122240403. The next prime is 2122240411. The reversal of 2122240405 is 5040422212.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2122240405 - 21 = 2122240403 is a prime.
It is a super-2 number, since 2×21222404052 = 9007808673229128050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2122240403) 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, 14467 + ... + 66736.
It is an arithmetic number, because the mean of its divisors is an integer number (318400884).
Almost surely, 22122240405 is an apocalyptic number.
It is an amenable number.
2122240405 is a deficient number, since it is larger than the sum of its proper divisors (424966667).
2122240405 is an equidigital number, since it uses as much as digits as its factorization.
2122240405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86435.
The product of its (nonzero) digits is 1280, while the sum is 22.
The square root of 2122240405 is about 46067.7805521386. The cubic root of 2122240405 is about 1285.0840290854.
Adding to 2122240405 its reverse (5040422212), we get a palindrome (7162662617).
The spelling of 2122240405 in words is "two billion, one hundred twenty-two million, two hundred forty thousand, four hundred five".
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