Base | Representation |
---|---|
bin | 100011110011010… |
… | …0110001011111101 |
3 | 10002201110101002210 |
4 | 1013212212023331 |
5 | 4430013101341 |
6 | 315112011033 |
7 | 41524612002 |
oct | 10746461375 |
9 | 3081411083 |
10 | 1201300221 |
11 | 567114700 |
12 | 296390a79 |
13 | 161b5b244 |
14 | b578b8a9 |
15 | 706e5c16 |
hex | 479a62fd |
1201300221 has 12 divisors (see below), whose sum is σ = 1760583776. Its totient is φ = 728060520.
The previous prime is 1201300207. The next prime is 1201300231. The reversal of 1201300221 is 1220031021.
It is not a de Polignac number, because 1201300221 - 29 = 1201299709 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1201300197 and 1201300206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1201300231) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1654321 + ... + 1655046.
Almost surely, 21201300221 is an apocalyptic number.
1201300221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1201300221 is a deficient number, since it is larger than the sum of its proper divisors (559283555).
1201300221 is a wasteful number, since it uses less digits than its factorization.
1201300221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3309392 (or 3309381 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 1201300221 is about 34659.7781441255. The cubic root of 1201300221 is about 1063.0422336990.
Adding to 1201300221 its reverse (1220031021), we get a palindrome (2421331242).
The spelling of 1201300221 in words is "one billion, two hundred one million, three hundred thousand, two hundred twenty-one".
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