Search a number
-
+
68531682 = 2311421947
BaseRepresentation
bin1000001010110…
…11010111100010
311202221202210110
410011123113202
5120021003212
610444512150
71461336552
oct405332742
9152852713
1068531682
113575895a
121ab4b656
13112763bb
14915d162
15603aa3c
hex415b5e2

68531682 has 8 divisors (see below), whose sum is σ = 137063376. Its totient is φ = 22843892.

The previous prime is 68531677. The next prime is 68531699. The reversal of 68531682 is 28613586.

It is a happy number.

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

68531682 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 68531682.

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 3 ways as a sum of consecutive naturals, for example, 5710968 + ... + 5710979.

It is an arithmetic number, because the mean of its divisors is an integer number (17132922).

Almost surely, 268531682 is an apocalyptic number.

68531682 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68531682 is a wasteful number, since it uses less digits than its factorization.

68531682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421952.

The product of its digits is 69120, while the sum is 39.

The square root of 68531682 is about 8278.3864369815. The cubic root of 68531682 is about 409.2265449862.

The spelling of 68531682 in words is "sixty-eight million, five hundred thirty-one thousand, six hundred eighty-two".

Divisors: 1 2 3 6 11421947 22843894 34265841 68531682