Base | Representation |
---|---|
bin | 101110001111… |
… | …010010010010 |
3 | 211210211012121 |
4 | 232033102102 |
5 | 11100334414 |
6 | 1111444454 |
7 | 205012606 |
oct | 56172222 |
9 | 24724177 |
10 | 12121234 |
11 | 6929954 |
12 | 408672a |
13 | 2685238 |
14 | 1877506 |
15 | 10e6724 |
hex | b8f492 |
12121234 has 8 divisors (see below), whose sum is σ = 18196668. Its totient is φ = 6055680.
The previous prime is 12121231. The next prime is 12121267. The reversal of 12121234 is 43212121.
12121234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
12121234 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It can be written as a sum of positive squares in 2 ways, for example, as 11923209 + 198025 = 3453^2 + 445^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (12121231) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3234 + ... + 5890.
Almost surely, 212121234 is an apocalyptic number.
12121234 is a deficient number, since it is larger than the sum of its proper divisors (6075434).
12121234 is a wasteful number, since it uses less digits than its factorization.
12121234 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4940.
The product of its digits is 96, while the sum is 16.
The square root of 12121234 is about 3481.5562612142. The cubic root of 12121234 is about 229.7112570703.
Adding to 12121234 its reverse (43212121), we get a palindrome (55333355).
The spelling of 12121234 in words is "twelve million, one hundred twenty-one thousand, two hundred thirty-four".
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