Search a number
-
+
13287067 = 15784631
BaseRepresentation
bin110010101011…
…111010011011
3221000001102121
4302223322123
511400141232
61152442111
7220636543
oct62537233
927001377
1013287067
117555852
124549337
1329a2a91
141a9c323
151276d97
hexcabe9b

13287067 has 4 divisors (see below), whose sum is σ = 13371856. Its totient is φ = 13202280.

The previous prime is 13287049. The next prime is 13287083. The reversal of 13287067 is 76078231.

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

It is a cyclic number.

It is not a de Polignac number, because 13287067 - 223 = 4898459 is a prime.

It is a super-2 number, since 2×132870672 = 353092298924978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13287007) 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, 42159 + ... + 42472.

It is an arithmetic number, because the mean of its divisors is an integer number (3342964).

Almost surely, 213287067 is an apocalyptic number.

13287067 is a deficient number, since it is larger than the sum of its proper divisors (84789).

13287067 is an equidigital number, since it uses as much as digits as its factorization.

13287067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84788.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 13287067 is about 3645.1429327257. The cubic root of 13287067 is about 236.8516284263.

The spelling of 13287067 in words is "thirteen million, two hundred eighty-seven thousand, sixty-seven".

Divisors: 1 157 84631 13287067