Base | Representation |
---|---|
bin | 110001110010… |
… | …001000010001 |
3 | 220120000202121 |
4 | 301302020101 |
5 | 11320103020 |
6 | 1143414241 |
7 | 215632525 |
oct | 61621021 |
9 | 26500677 |
10 | 13050385 |
11 | 7403a47 |
12 | 4454381 |
13 | 291c12a |
14 | 1a39d85 |
15 | 122bbaa |
hex | c72211 |
13050385 has 4 divisors (see below), whose sum is σ = 15660468. Its totient is φ = 10440304.
The previous prime is 13050379. The next prime is 13050403. The reversal of 13050385 is 58305031.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58305031 = 631 ⋅92401.
It can be written as a sum of positive squares in 2 ways, for example, as 6880129 + 6170256 = 2623^2 + 2484^2 .
It is a cyclic number.
It is not a de Polignac number, because 13050385 - 219 = 12526097 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 16.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305034 + ... + 1305043.
It is an arithmetic number, because the mean of its divisors is an integer number (3915117).
Almost surely, 213050385 is an apocalyptic number.
It is an amenable number.
13050385 is a deficient number, since it is larger than the sum of its proper divisors (2610083).
13050385 is an equidigital number, since it uses as much as digits as its factorization.
13050385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2610082.
The product of its (nonzero) digits is 1800, while the sum is 25.
The square root of 13050385 is about 3612.5316607609. The cubic root of 13050385 is about 235.4368515163.
The spelling of 13050385 in words is "thirteen million, fifty thousand, three hundred eighty-five".
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