Base | Representation |
---|---|
bin | 10110100100000001… |
… | …01100010000001010 |
3 | 1011021012100222112200 |
4 | 23102000230100022 |
5 | 144302003044320 |
6 | 5321554421030 |
7 | 606115421301 |
oct | 132200542012 |
9 | 34235328480 |
10 | 12113331210 |
11 | 5156729032 |
12 | 2420891776 |
13 | 11b0795206 |
14 | 82cabd438 |
15 | 4ad6aa290 |
hex | 2d202c40a |
12113331210 has 48 divisors (see below), whose sum is σ = 32345877096. Its totient is φ = 3142917504.
The previous prime is 12113331203. The next prime is 12113331257. The reversal of 12113331210 is 1213331121.
12113331210 is a `hidden beast` number, since 1 + 211 + 333 + 121 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 8981921529 + 3131409681 = 94773^2 + 55959^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1815489 + ... + 1822148.
Almost surely, 212113331210 is an apocalyptic number.
12113331210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12113331210 is an abundant number, since it is smaller than the sum of its proper divisors (20232545886).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12113331210 is a wasteful number, since it uses less digits than its factorization.
12113331210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3637687 (or 3637684 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 12113331210 its reverse (1213331121), we get a palindrome (13326662331).
The spelling of 12113331210 in words is "twelve billion, one hundred thirteen million, three hundred thirty-one thousand, two hundred ten".
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