Base | Representation |
---|---|
bin | 1110011100111… |
… | …01001101111001 |
3 | 22110010010120110 |
4 | 13032131031321 |
5 | 222013331301 |
6 | 20010214533 |
7 | 3001303551 |
oct | 716351571 |
9 | 273103513 |
10 | 121230201 |
11 | 62482054 |
12 | 34724449 |
13 | 1c167b61 |
14 | 1215a161 |
15 | a99a0d6 |
hex | 739d379 |
121230201 has 8 divisors (see below), whose sum is σ = 165399520. Its totient is φ = 78940512.
The previous prime is 121230173. The next prime is 121230209. The reversal of 121230201 is 102032121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 121230201 - 25 = 121230169 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (121230209) 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, 469756 + ... + 470013.
It is an arithmetic number, because the mean of its divisors is an integer number (20674940).
Almost surely, 2121230201 is an apocalyptic number.
It is an amenable number.
121230201 is a deficient number, since it is larger than the sum of its proper divisors (44169319).
121230201 is an equidigital number, since it uses as much as digits as its factorization.
121230201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 939815.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 121230201 is about 11010.4587097904. The cubic root of 121230201 is about 494.9222079568.
Adding to 121230201 its reverse (102032121), we get a palindrome (223262322).
It can be divided in two parts, 1212 and 30201, that added together give a palindrome (31413).
The spelling of 121230201 in words is "one hundred twenty-one million, two hundred thirty thousand, two hundred one".
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