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13282693 = 73318121
BaseRepresentation
bin110010101010…
…110110000101
3220222211102121
4302222312011
511400021233
61152405541
7220621024
oct62526605
926884377
1013282693
117552536
1245468b1
1329a0aa8
141a9a8bb
15127592d
hexcaad85

13282693 has 4 divisors (see below), whose sum is σ = 13301548. Its totient is φ = 13263840.

The previous prime is 13282681. The next prime is 13282697. The reversal of 13282693 is 39628231.

It is a happy number.

13282693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39628231 = 70156531.

It can be written as a sum of positive squares in 2 ways, for example, as 9721924 + 3560769 = 3118^2 + 1887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13282693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13282697) 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, 8328 + ... + 9793.

It is an arithmetic number, because the mean of its divisors is an integer number (3325387).

Almost surely, 213282693 is an apocalyptic number.

It is an amenable number.

13282693 is a deficient number, since it is larger than the sum of its proper divisors (18855).

13282693 is an equidigital number, since it uses as much as digits as its factorization.

13282693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18854.

The product of its digits is 15552, while the sum is 34.

The square root of 13282693 is about 3644.5429068677. The cubic root of 13282693 is about 236.8256356639.

The spelling of 13282693 in words is "thirteen million, two hundred eighty-two thousand, six hundred ninety-three".

Divisors: 1 733 18121 13282693