Base | Representation |
---|---|
bin | 1000010000001001… |
… | …1011101100100010 |
3 | 12201101100100121112 |
4 | 2010002123230202 |
5 | 14014044331432 |
6 | 1003452023322 |
7 | 105616101131 |
oct | 20402335442 |
9 | 5641310545 |
10 | 2215230242 |
11 | a374922a5 |
12 | 519a61b42 |
13 | 293c34a34 |
14 | 1702c3918 |
15 | ce7297b2 |
hex | 8409bb22 |
2215230242 has 4 divisors (see below), whose sum is σ = 3322845366. Its totient is φ = 1107615120.
The previous prime is 2215230229. The next prime is 2215230247. The reversal of 2215230242 is 2420325122.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 2186404081 + 28826161 = 46759^2 + 5369^2 .
It is not an unprimeable number, because it can be changed into a prime (2215230247) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553807559 + ... + 553807562.
Almost surely, 22215230242 is an apocalyptic number.
2215230242 is a deficient number, since it is larger than the sum of its proper divisors (1107615124).
2215230242 is a wasteful number, since it uses less digits than its factorization.
2215230242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1107615123.
The product of its (nonzero) digits is 1920, while the sum is 23.
The square root of 2215230242 is about 47066.2325027190. The cubic root of 2215230242 is about 1303.5858086001.
Adding to 2215230242 its reverse (2420325122), we get a palindrome (4635555364).
The spelling of 2215230242 in words is "two billion, two hundred fifteen million, two hundred thirty thousand, two hundred forty-two".
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