Base | Representation |
---|---|
bin | 1110011100111… |
… | …01001110011010 |
3 | 22110010010121200 |
4 | 13032131032122 |
5 | 222013331414 |
6 | 20010215030 |
7 | 3001303626 |
oct | 716351632 |
9 | 273103550 |
10 | 121230234 |
11 | 62482084 |
12 | 34724476 |
13 | 1c167b88 |
14 | 1215a186 |
15 | a99a109 |
hex | 739d39a |
121230234 has 12 divisors (see below), whose sum is σ = 262665546. Its totient is φ = 40410072.
The previous prime is 121230233. The next prime is 121230253. The reversal of 121230234 is 432032121.
It can be written as a sum of positive squares in only one way, i.e., 109307025 + 11923209 = 10455^2 + 3453^2 .
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6735013 = 121230234 / (1 + 2 + 1 + 2 + 3 + 0 + 2 + 3 + 4).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (121230233) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3367489 + ... + 3367524.
Almost surely, 2121230234 is an apocalyptic number.
121230234 is an abundant number, since it is smaller than the sum of its proper divisors (141435312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121230234 is a wasteful number, since it uses less digits than its factorization.
121230234 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6735021 (or 6735018 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 121230234 is about 11010.4602083655. The cubic root of 121230234 is about 494.9222528643.
Adding to 121230234 its reverse (432032121), we get a palindrome (553262355).
The spelling of 121230234 in words is "one hundred twenty-one million, two hundred thirty thousand, two hundred thirty-four".
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