Search a number
-
+
13869361 = 111260851
BaseRepresentation
bin110100111010…
…000100110001
3222002122012001
4310322010301
512022304421
61213134001
7225613312
oct64720461
928078161
1013869361
117913290
12478a301
132b47b2c
141bb0609
15133e691
hexd3a131

13869361 has 4 divisors (see below), whose sum is σ = 15130224. Its totient is φ = 12608500.

The previous prime is 13869347. The next prime is 13869377. The reversal of 13869361 is 16396831.

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.

It is a cyclic number.

It is not a de Polignac number, because 13869361 - 221 = 11772209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13869361.

It is not an unprimeable number, because it can be changed into a prime (13869461) 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, 630415 + ... + 630436.

It is an arithmetic number, because the mean of its divisors is an integer number (3782556).

Almost surely, 213869361 is an apocalyptic number.

13869361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13869361 is a deficient number, since it is larger than the sum of its proper divisors (1260863).

13869361 is a wasteful number, since it uses less digits than its factorization.

13869361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260862.

The product of its digits is 23328, while the sum is 37.

The square root of 13869361 is about 3724.1590997163. The cubic root of 13869361 is about 240.2622191873.

The spelling of 13869361 in words is "thirteen million, eight hundred sixty-nine thousand, three hundred sixty-one".

Divisors: 1 11 1260851 13869361