Base | Representation |
---|---|
bin | 110000011101… |
… | …110111111011 |
3 | 212220111100202 |
4 | 300131313323 |
5 | 11223032100 |
6 | 1132152415 |
7 | 212664422 |
oct | 60356773 |
9 | 25814322 |
10 | 12705275 |
11 | 7198730 |
12 | 430870b |
13 | 282b01b |
14 | 198a2b9 |
15 | 11ae7d5 |
hex | c1ddfb |
12705275 has 24 divisors (see below), whose sum is σ = 17570304. Its totient is φ = 9034400.
The previous prime is 12705271. The next prime is 12705289. The reversal of 12705275 is 57250721.
It is not a de Polignac number, because 12705275 - 22 = 12705271 is a prime.
It is a super-2 number, since 2×127052752 = 322848025651250, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12705271) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12434 + ... + 13416.
It is an arithmetic number, because the mean of its divisors is an integer number (732096).
Almost surely, 212705275 is an apocalyptic number.
12705275 is a deficient number, since it is larger than the sum of its proper divisors (4865029).
12705275 is a wasteful number, since it uses less digits than its factorization.
12705275 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1051 (or 1046 counting only the distinct ones).
The product of its (nonzero) digits is 4900, while the sum is 29.
The square root of 12705275 is about 3564.4459597531. The cubic root of 12705275 is about 233.3429531181.
Adding to 12705275 its reverse (57250721), we get a palindrome (69955996).
The spelling of 12705275 in words is "twelve million, seven hundred five thousand, two hundred seventy-five".
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