Base | Representation |
---|---|
bin | 1110011101100… |
… | …11011100000111 |
3 | 22110021202102122 |
4 | 13032303130013 |
5 | 222024234343 |
6 | 20012200155 |
7 | 3002133122 |
oct | 716633407 |
9 | 273252378 |
10 | 121321223 |
11 | 62534481 |
12 | 3476905b |
13 | 1c19a40a |
14 | 121813b9 |
15 | a9b7068 |
hex | 73b3707 |
121321223 has 8 divisors (see below), whose sum is σ = 122566080. Its totient is φ = 120083040.
The previous prime is 121321177. The next prime is 121321229. The reversal of 121321223 is 322123121.
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 121321223 - 28 = 121320967 is a prime.
It is a super-3 number, since 3×1213212233 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121321229) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39986 + ... + 42912.
It is an arithmetic number, because the mean of its divisors is an integer number (15320760).
Almost surely, 2121321223 is an apocalyptic number.
121321223 is a deficient number, since it is larger than the sum of its proper divisors (1244857).
121321223 is a wasteful number, since it uses less digits than its factorization.
121321223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3337.
The product of its digits is 144, while the sum is 17.
The square root of 121321223 is about 11014.5913678175. The cubic root of 121321223 is about 495.0460427192.
Adding to 121321223 its reverse (322123121), we get a palindrome (443444344).
The spelling of 121321223 in words is "one hundred twenty-one million, three hundred twenty-one thousand, two hundred twenty-three".
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