Search a number
-
+
13986005 = 511254291
BaseRepresentation
bin110101010110…
…100011010101
3222022120012012
4311112203111
512040023010
61215434005
7226610345
oct65264325
928276165
1013986005
117992990
124825905
132b88c57
141c00d25
151364005
hexd568d5

13986005 has 8 divisors (see below), whose sum is σ = 18309024. Its totient is φ = 10171600.

The previous prime is 13985989. The next prime is 13986013. The reversal of 13986005 is 50068931.

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

It is not a de Polignac number, because 13986005 - 24 = 13985989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127091 + ... + 127200.

It is an arithmetic number, because the mean of its divisors is an integer number (2288628).

Almost surely, 213986005 is an apocalyptic number.

It is an amenable number.

13986005 is a deficient number, since it is larger than the sum of its proper divisors (4323019).

13986005 is a wasteful number, since it uses less digits than its factorization.

13986005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254307.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 13986005 is about 3739.7867586268. The cubic root of 13986005 is about 240.9338902591.

The spelling of 13986005 in words is "thirteen million, nine hundred eighty-six thousand, five".

Divisors: 1 5 11 55 254291 1271455 2797201 13986005