Search a number
-
+
68541186 = 2373161863
BaseRepresentation
bin1000001010111…
…01101100000010
311202222020211110
410011131230002
5120021304221
610445024150
71461406350
oct405355402
9152866743
1068541186
113576500a
121ab55056
131127a81c
1491627d0
15603d776
hex415db02

68541186 has 64 divisors (see below), whose sum is σ = 164560896. Its totient is φ = 18619200.

The previous prime is 68541149. The next prime is 68541191. The reversal of 68541186 is 68114586.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 78991 + ... + 79853.

It is an arithmetic number, because the mean of its divisors is an integer number (2571264).

Almost surely, 268541186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68541186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82280448).

68541186 is an abundant number, since it is smaller than the sum of its proper divisors (96019710).

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

68541186 is a wasteful number, since it uses less digits than its factorization.

68541186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its digits is 46080, while the sum is 39.

The square root of 68541186 is about 8278.9604419879. The cubic root of 68541186 is about 409.2454613433.

The spelling of 68541186 in words is "sixty-eight million, five hundred forty-one thousand, one hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 31 42 61 62 93 122 183 186 217 366 427 434 651 854 863 1281 1302 1726 1891 2562 2589 3782 5178 5673 6041 11346 12082 13237 18123 26474 26753 36246 39711 52643 53506 79422 80259 105286 157929 160518 187271 315858 368501 374542 561813 737002 1105503 1123626 1631933 2211006 3263866 4895799 9791598 11423531 22847062 34270593 68541186