Base | Representation |
---|---|
bin | 1110011011010… |
… | …10101101001001 |
3 | 22102201121202122 |
4 | 13031222231021 |
5 | 221440221210 |
6 | 20001541025 |
7 | 2666452424 |
oct | 715525511 |
9 | 272647678 |
10 | 121023305 |
11 | 62350667 |
12 | 34644775 |
13 | 1c0c4930 |
14 | 121049bb |
15 | a958b55 |
hex | 736ab49 |
121023305 has 8 divisors (see below), whose sum is σ = 156399432. Its totient is φ = 89371008.
The previous prime is 121023299. The next prime is 121023359. The reversal of 121023305 is 503320121.
It can be written as a sum of positive squares in 4 ways, for example, as 309136 + 120714169 = 556^2 + 10987^2 .
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 121023305 - 210 = 121022281 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930884 + ... + 931013.
It is an arithmetic number, because the mean of its divisors is an integer number (19549929).
Almost surely, 2121023305 is an apocalyptic number.
It is an amenable number.
121023305 is a deficient number, since it is larger than the sum of its proper divisors (35376127).
121023305 is a wasteful number, since it uses less digits than its factorization.
121023305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1861915.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 121023305 is about 11001.0592671797. The cubic root of 121023305 is about 494.6404967128.
Adding to 121023305 its reverse (503320121), we get a palindrome (624343426).
The spelling of 121023305 in words is "one hundred twenty-one million, twenty-three thousand, three hundred five".
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