Base | Representation |
---|---|
bin | 1110011101100… |
… | …11111011011110 |
3 | 22110021212011222 |
4 | 13032303323132 |
5 | 222024320410 |
6 | 20012213342 |
7 | 3002142020 |
oct | 716637336 |
9 | 273255158 |
10 | 121323230 |
11 | 62535a36 |
12 | 3476a252 |
13 | 1c19b2c2 |
14 | 12182010 |
15 | a9b7955 |
hex | 73b3ede |
121323230 has 32 divisors (see below), whose sum is σ = 250520256. Its totient is φ = 41439744.
The previous prime is 121323221. The next prime is 121323233. The reversal of 121323230 is 32323121.
It is a super-2 number, since 2×1213232302 = 29438652275265800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 121323199 and 121323208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121323233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16262 + ... + 22518.
It is an arithmetic number, because the mean of its divisors is an integer number (7828758).
Almost surely, 2121323230 is an apocalyptic number.
121323230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121323230 is an abundant number, since it is smaller than the sum of its proper divisors (129197026).
121323230 is a wasteful number, since it uses less digits than its factorization.
121323230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6548.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 121323230 is about 11014.6824738619. The cubic root of 121323230 is about 495.0487725299.
Adding to 121323230 its reverse (32323121), we get a palindrome (153646351).
The spelling of 121323230 in words is "one hundred twenty-one million, three hundred twenty-three thousand, two hundred thirty".
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