Search a number
-
+
680541 = 3376131
BaseRepresentation
bin10100110001001011101
31021120112020
42212021131
5133234131
622330353
75533041
oct2461135
91246466
10680541
11425334
122899b9
131aa9b4
1413a021
15d6996
hexa625d

680541 has 8 divisors (see below), whose sum is σ = 932064. Its totient is φ = 441360.

The previous prime is 680539. The next prime is 680567. The reversal of 680541 is 145086.

680541 = T173 + T174 + ... + T209.

680541 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 not a de Polignac number, because 680541 - 21 = 680539 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680541.

It is not an unprimeable number, because it can be changed into a prime (680531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2955 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (116508).

2680541 is an apocalyptic number.

It is an amenable number.

680541 is a deficient number, since it is larger than the sum of its proper divisors (251523).

680541 is a wasteful number, since it uses less digits than its factorization.

680541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171.

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

The square root of 680541 is about 824.9490893382. The cubic root of 680541 is about 87.9599077011.

It can be divided in two parts, 680 and 541, that added together give a palindrome (1221).

The spelling of 680541 in words is "six hundred eighty thousand, five hundred forty-one".

Divisors: 1 3 37 111 6131 18393 226847 680541