Base | Representation |
---|---|
bin | 110010101010… |
… | …000001110101 |
3 | 220222122211202 |
4 | 302222001311 |
5 | 11344414344 |
6 | 1152342245 |
7 | 220605206 |
oct | 62520165 |
9 | 26878752 |
10 | 13279349 |
11 | 754aa76 |
12 | 4544985 |
13 | 299c405 |
14 | 1a995ad |
15 | 127494e |
hex | caa075 |
13279349 has 4 divisors (see below), whose sum is σ = 13856736. Its totient is φ = 12701964.
The previous prime is 13279297. The next prime is 13279351. The reversal of 13279349 is 94397231.
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, and also an emirpimes, since its reverse is a distinct semiprime: 94397231 = 587 ⋅160813.
It is a cyclic number.
It is not a de Polignac number, because 13279349 - 28 = 13279093 is a prime.
It is a super-2 number, since 2×132793492 = 352682219727602, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13279249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288659 + ... + 288704.
It is an arithmetic number, because the mean of its divisors is an integer number (3464184).
Almost surely, 213279349 is an apocalyptic number.
It is an amenable number.
13279349 is a deficient number, since it is larger than the sum of its proper divisors (577387).
13279349 is an equidigital number, since it uses as much as digits as its factorization.
13279349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 577386.
The product of its digits is 40824, while the sum is 38.
The square root of 13279349 is about 3644.0841098965. The cubic root of 13279349 is about 236.8057598904.
The spelling of 13279349 in words is "thirteen million, two hundred seventy-nine thousand, three hundred forty-nine".
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