Base | Representation |
---|---|
bin | 101111010101… |
… | …010011000001 |
3 | 212100101120121 |
4 | 233111103001 |
5 | 11134024001 |
6 | 1121540241 |
7 | 210315634 |
oct | 57252301 |
9 | 25311517 |
10 | 12408001 |
11 | 7005351 |
12 | 41a4681 |
13 | 2755918 |
14 | 190dc1b |
15 | 11516a1 |
hex | bd54c1 |
12408001 has 2 divisors, whose sum is σ = 12408002. Its totient is φ = 12408000.
The previous prime is 12407999. The next prime is 12408013. The reversal of 12408001 is 10080421.
It is a happy number.
12408001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7568001 + 4840000 = 2751^2 + 2200^2 .
It is a cyclic number.
It is not a de Polignac number, because 12408001 - 21 = 12407999 is a prime.
Together with 12407999, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (12408301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6204000 + 6204001.
It is an arithmetic number, because the mean of its divisors is an integer number (6204001).
Almost surely, 212408001 is an apocalyptic number.
It is an amenable number.
12408001 is a deficient number, since it is larger than the sum of its proper divisors (1).
12408001 is an equidigital number, since it uses as much as digits as its factorization.
12408001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 64, while the sum is 16.
The square root of 12408001 is about 3522.4992547906. The cubic root of 12408001 is about 231.5086770799.
Adding to 12408001 its reverse (10080421), we get a palindrome (22488422).
The spelling of 12408001 in words is "twelve million, four hundred eight thousand, one".
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