Search a number
-
+
682215 = 3545481
BaseRepresentation
bin10100110100011100111
31021122211020
42212203213
5133312330
622342223
75540652
oct2464347
91248736
10682215
11426616
1228a973
131ab6a1
1413a899
15d7210
hexa68e7

682215 has 8 divisors (see below), whose sum is σ = 1091568. Its totient is φ = 363840.

The previous prime is 682207. The next prime is 682219. The reversal of 682215 is 512286.

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

It is not a de Polignac number, because 682215 - 23 = 682207 is a prime.

It is an Ulam number.

682215 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682219) 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 7 ways as a sum of consecutive naturals, for example, 22726 + ... + 22755.

It is an arithmetic number, because the mean of its divisors is an integer number (136446).

2682215 is an apocalyptic number.

682215 is a deficient number, since it is larger than the sum of its proper divisors (409353).

682215 is a wasteful number, since it uses less digits than its factorization.

682215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45489.

The product of its digits is 960, while the sum is 24.

The square root of 682215 is about 825.9630742352. The cubic root of 682215 is about 88.0319701333.

The spelling of 682215 in words is "six hundred eighty-two thousand, two hundred fifteen".

Divisors: 1 3 5 15 45481 136443 227405 682215