Base | Representation |
---|---|
bin | 100100011101011… |
… | …1110100101010001 |
3 | 10011021002012001210 |
4 | 1020322332211101 |
5 | 10001143421431 |
6 | 321222050333 |
7 | 42213620601 |
oct | 11072764521 |
9 | 3137065053 |
10 | 1223420241 |
11 | 57865280a |
12 | 2a18799a9 |
13 | 166604604 |
14 | b86a8c01 |
15 | 72614d46 |
hex | 48ebe951 |
1223420241 has 32 divisors (see below), whose sum is σ = 1747630080. Its totient is φ = 759024000.
The previous prime is 1223420183. The next prime is 1223420243. The reversal of 1223420241 is 1420243221.
It is not a de Polignac number, because 1223420241 - 210 = 1223419217 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1223420243) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2035341 + ... + 2035941.
It is an arithmetic number, because the mean of its divisors is an integer number (54613440).
Almost surely, 21223420241 is an apocalyptic number.
It is an amenable number.
1223420241 is a deficient number, since it is larger than the sum of its proper divisors (524209839).
1223420241 is a wasteful number, since it uses less digits than its factorization.
1223420241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1197.
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 1223420241 is about 34977.4247336764. The cubic root of 1223420241 is about 1069.5273310450.
Adding to 1223420241 its reverse (1420243221), we get a palindrome (2643663462).
The spelling of 1223420241 in words is "one billion, two hundred twenty-three million, four hundred twenty thousand, two hundred forty-one".
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