Search a number
-
+
214705 = 5231867
BaseRepresentation
bin110100011010110001
3101220112001
4310122301
523332310
64334001
71552651
oct643261
9356461
10214705
11137347
12a4301
137695a
1458361
154393a
hex346b1

214705 has 8 divisors (see below), whose sum is σ = 268992. Its totient is φ = 164208.

The previous prime is 214691. The next prime is 214723. The reversal of 214705 is 507412.

214705 = 1422 + 1432 + ... + 1512.

214705 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 214705 - 25 = 214673 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

214705 is a lucky 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, 819 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (33624).

2214705 is an apocalyptic number.

It is an amenable number.

214705 is a deficient number, since it is larger than the sum of its proper divisors (54287).

214705 is a wasteful number, since it uses less digits than its factorization.

214705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 214705 is about 463.3627089009. The cubic root of 214705 is about 59.8798521615.

It can be divided in two parts, 214 and 705, that added together give a palindrome (919).

The spelling of 214705 in words is "two hundred fourteen thousand, seven hundred five".

Divisors: 1 5 23 115 1867 9335 42941 214705