Base | Representation |
---|---|
bin | 111000011111000101… |
… | …1010000000100101101 |
3 | 102121002202112022000121 |
4 | 1300332023100010231 |
5 | 3441411332033401 |
6 | 131420411324541 |
7 | 11522660603245 |
oct | 1607613200455 |
9 | 377082468017 |
10 | 121302221101 |
11 | 47497a3a106 |
12 | 1b613a50751 |
13 | b591c1c2b9 |
14 | 5c2a284b25 |
15 | 324e483ca1 |
hex | 1c3e2d012d |
121302221101 has 8 divisors (see below), whose sum is σ = 122497113024. Its totient is φ = 120107660160.
The previous prime is 121302221093. The next prime is 121302221137. The reversal of 121302221101 is 101122203121.
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 121302221101 - 23 = 121302221093 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121302221701) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689106 + ... + 847036.
It is an arithmetic number, because the mean of its divisors is an integer number (15312139128).
Almost surely, 2121302221101 is an apocalyptic number.
It is an amenable number.
121302221101 is a deficient number, since it is larger than the sum of its proper divisors (1194891923).
121302221101 is a wasteful number, since it uses less digits than its factorization.
121302221101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 165491.
The product of its (nonzero) digits is 48, while the sum is 16.
Adding to 121302221101 its reverse (101122203121), we get a palindrome (222424424222).
The spelling of 121302221101 in words is "one hundred twenty-one billion, three hundred two million, two hundred twenty-one thousand, one hundred one".
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