Base | Representation |
---|---|
bin | 110001101111… |
… | …111010011001 |
3 | 220112120022022 |
4 | 301233322121 |
5 | 11314310210 |
6 | 1143304225 |
7 | 215564204 |
oct | 61577231 |
9 | 26476268 |
10 | 13041305 |
11 | 73a8142 |
12 | 444b075 |
13 | 2917c64 |
14 | 1a3693b |
15 | 1229155 |
hex | c6fe99 |
13041305 has 8 divisors (see below), whose sum is σ = 15793800. Its totient is φ = 10336896.
The previous prime is 13041293. The next prime is 13041307. The reversal of 13041305 is 50314031.
It can be written as a sum of positive squares in 4 ways, for example, as 3225616 + 9815689 = 1796^2 + 3133^2 .
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 13041305 - 210 = 13040281 is a prime.
It is a super-2 number, since 2×130413052 = 340151272206050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13041307) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11420 + ... + 12509.
It is an arithmetic number, because the mean of its divisors is an integer number (1974225).
Almost surely, 213041305 is an apocalyptic number.
It is an amenable number.
13041305 is a deficient number, since it is larger than the sum of its proper divisors (2752495).
13041305 is a wasteful number, since it uses less digits than its factorization.
13041305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24043.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 13041305 is about 3611.2747056960. The cubic root of 13041305 is about 235.3822359475.
Adding to 13041305 its reverse (50314031), we get a palindrome (63355336).
The spelling of 13041305 in words is "thirteen million, forty-one thousand, three hundred five".
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