Base | Representation |
---|---|
bin | 101111011001… |
… | …111111000101 |
3 | 212101100220212 |
4 | 233121333011 |
5 | 11140132310 |
6 | 1122205205 |
7 | 210425630 |
oct | 57317705 |
9 | 25340825 |
10 | 12427205 |
11 | 701881a |
12 | 41b3805 |
13 | 276159b |
14 | 1916c17 |
15 | 1157205 |
hex | bd9fc5 |
12427205 has 8 divisors (see below), whose sum is σ = 17043072. Its totient is φ = 8521488.
The previous prime is 12427193. The next prime is 12427211. The reversal of 12427205 is 50272421.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12427205 - 24 = 12427189 is a prime.
It is a super-2 number, since 2×124272052 = 308870848224050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177497 + ... + 177566.
It is an arithmetic number, because the mean of its divisors is an integer number (2130384).
Almost surely, 212427205 is an apocalyptic number.
It is an amenable number.
12427205 is a deficient number, since it is larger than the sum of its proper divisors (4615867).
12427205 is an equidigital number, since it uses as much as digits as its factorization.
12427205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 355075.
The product of its (nonzero) digits is 1120, while the sum is 23.
The square root of 12427205 is about 3525.2241063513. The cubic root of 12427205 is about 231.6280516929.
Adding to 12427205 its reverse (50272421), we get a palindrome (62699626).
The spelling of 12427205 in words is "twelve million, four hundred twenty-seven thousand, two hundred five".
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