Search a number
-
+
13896385 = 52779277
BaseRepresentation
bin110101000000…
…101011000001
3222011000020221
4311000223001
512024141020
61213503041
7226055146
oct65005301
928130227
1013896385
117931618
1247a1a81
132b57219
141bba3cd
1513476aa
hexd40ac1

13896385 has 4 divisors (see below), whose sum is σ = 16675668. Its totient is φ = 11117104.

The previous prime is 13896383. The next prime is 13896397. The reversal of 13896385 is 58369831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10699441 + 3196944 = 3271^2 + 1788^2 .

It is a cyclic number.

It is not a de Polignac number, because 13896385 - 21 = 13896383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13896383) 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, 1389634 + ... + 1389643.

It is an arithmetic number, because the mean of its divisors is an integer number (4168917).

Almost surely, 213896385 is an apocalyptic number.

It is an amenable number.

13896385 is a deficient number, since it is larger than the sum of its proper divisors (2779283).

13896385 is an equidigital number, since it uses as much as digits as its factorization.

13896385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779282.

The product of its digits is 155520, while the sum is 43.

The square root of 13896385 is about 3727.7855356766. The cubic root of 13896385 is about 240.4181656589.

The spelling of 13896385 in words is "thirteen million, eight hundred ninety-six thousand, three hundred eighty-five".

Divisors: 1 5 2779277 13896385