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13585245 = 35905683
BaseRepresentation
bin110011110100…
…101101011101
3221120012110020
4303310231131
511434211440
61203102353
7223321062
oct63645535
927505406
1013585245
117739883
1246719b9
132a7870b
141b38c69
1512d53d0
hexcf4b5d

13585245 has 8 divisors (see below), whose sum is σ = 21736416. Its totient is φ = 7245456.

The previous prime is 13585189. The next prime is 13585259. The reversal of 13585245 is 54258531.

Added to its reverse (54258531) it gives a triangular number (67843776 = T11648).

13585245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13585245 - 26 = 13585181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452827 + ... + 452856.

It is an arithmetic number, because the mean of its divisors is an integer number (2717052).

Almost surely, 213585245 is an apocalyptic number.

13585245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13585245 is a deficient number, since it is larger than the sum of its proper divisors (8151171).

13585245 is an equidigital number, since it uses as much as digits as its factorization.

13585245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905691.

The product of its digits is 24000, while the sum is 33.

The square root of 13585245 is about 3685.8167344566. The cubic root of 13585245 is about 238.6102843815.

Adding to 13585245 its reverse (54258531), we get a triangular number (67843776 = T11648).

The spelling of 13585245 in words is "thirteen million, five hundred eighty-five thousand, two hundred forty-five".

Divisors: 1 3 5 15 905683 2717049 4528415 13585245