Base | Representation |
---|---|
bin | 111000100010111001… |
… | …1110110100111011001 |
3 | 102121102200112122102122 |
4 | 1301011303312213121 |
5 | 3442142124231431 |
6 | 131441224511025 |
7 | 11526104364350 |
oct | 1610563664731 |
9 | 377380478378 |
10 | 121430305241 |
11 | 47553272673 |
12 | 1b64a91b475 |
13 | b5b2616a2b |
14 | 5c3d2a6997 |
15 | 325a834a7b |
hex | 1c45cf69d9 |
121430305241 has 16 divisors (see below), whose sum is σ = 143041455744. Its totient is φ = 100920484224.
The previous prime is 121430305229. The next prime is 121430305259. The reversal of 121430305241 is 142503034121.
It is a happy number.
It is not a de Polignac number, because 121430305241 - 26 = 121430305177 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 121430305241.
It is not an unprimeable number, because it can be changed into a prime (121430307241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431110 + ... + 1513583.
It is an arithmetic number, because the mean of its divisors is an integer number (8940090984).
Almost surely, 2121430305241 is an apocalyptic number.
It is an amenable number.
121430305241 is a deficient number, since it is larger than the sum of its proper divisors (21611150503).
121430305241 is a wasteful number, since it uses less digits than its factorization.
121430305241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2944880.
The product of its (nonzero) digits is 2880, while the sum is 26.
Adding to 121430305241 its reverse (142503034121), we get a palindrome (263933339362).
The spelling of 121430305241 in words is "one hundred twenty-one billion, four hundred thirty million, three hundred five thousand, two hundred forty-one".
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