Base | Representation |
---|---|
bin | 101111100011… |
… | …001101010101 |
3 | 212110021201222 |
4 | 233203031111 |
5 | 11142334411 |
6 | 1123100125 |
7 | 210644024 |
oct | 57431525 |
9 | 25407658 |
10 | 12464981 |
11 | 7044141 |
12 | 4211645 |
13 | 2775839 |
14 | 19268bb |
15 | 11634db |
hex | be3355 |
12464981 has 2 divisors, whose sum is σ = 12464982. Its totient is φ = 12464980.
The previous prime is 12464971. The next prime is 12464987. The reversal of 12464981 is 18946421.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6584356 + 5880625 = 2566^2 + 2425^2 .
It is a cyclic number.
It is not a de Polignac number, because 12464981 - 218 = 12202837 is a prime.
It is a super-2 number, since 2×124649812 = 310751502660722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12464987) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6232490 + 6232491.
It is an arithmetic number, because the mean of its divisors is an integer number (6232491).
Almost surely, 212464981 is an apocalyptic number.
It is an amenable number.
12464981 is a deficient number, since it is larger than the sum of its proper divisors (1).
12464981 is an equidigital number, since it uses as much as digits as its factorization.
12464981 is an evil number, because the sum of its binary digits is even.
The product of its digits is 13824, while the sum is 35.
The square root of 12464981 is about 3530.5779980054. The cubic root of 12464981 is about 231.8625139127.
The spelling of 12464981 in words is "twelve million, four hundred sixty-four thousand, nine hundred eighty-one".
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