Base | Representation |
---|---|
bin | 110000011101… |
… | …111010110101 |
3 | 212220111121122 |
4 | 300131322311 |
5 | 11223033321 |
6 | 1132153325 |
7 | 212665106 |
oct | 60357265 |
9 | 25814548 |
10 | 12705461 |
11 | 719888a |
12 | 4308845 |
13 | 282b132 |
14 | 198a3ad |
15 | 11ae8ab |
hex | c1deb5 |
12705461 has 4 divisors (see below), whose sum is σ = 12805632. Its totient is φ = 12605292.
The previous prime is 12705437. The next prime is 12705481. The reversal of 12705461 is 16450721.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 12705461 - 26 = 12705397 is a prime.
It is a super-2 number, since 2×127054612 = 322857478445042, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12705461.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12705401) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49895 + ... + 50148.
It is an arithmetic number, because the mean of its divisors is an integer number (3201408).
Almost surely, 212705461 is an apocalyptic number.
It is an amenable number.
12705461 is a deficient number, since it is larger than the sum of its proper divisors (100171).
12705461 is a wasteful number, since it uses less digits than its factorization.
12705461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 100170.
The product of its (nonzero) digits is 1680, while the sum is 26.
The square root of 12705461 is about 3564.4720506689. The cubic root of 12705461 is about 233.3440917942.
The spelling of 12705461 in words is "twelve million, seven hundred five thousand, four hundred sixty-one".
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