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68116938 = 23192383313
BaseRepresentation
bin1000000111101…
…10000111001010
311202011200212120
410003312013022
5114414220223
610431552110
71454661441
oct403660712
9152150776
1068116938
11354a529a
121a98b636
131115c6a6
149091d58
155ea7be3
hex40f61ca

68116938 has 64 divisors (see below), whose sum is σ = 151925760. Its totient is φ = 20262528.

The previous prime is 68116913. The next prime is 68116973. The reversal of 68116938 is 83961186.

It is a self number, because there is not a number n which added to its sum of digits gives 68116938.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217470 + ... + 217782.

It is an arithmetic number, because the mean of its divisors is an integer number (2373840).

Almost surely, 268116938 is an apocalyptic number.

68116938 is an abundant number, since it is smaller than the sum of its proper divisors (83808822).

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

68116938 is a wasteful number, since it uses less digits than its factorization.

68116938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its digits is 62208, while the sum is 42.

The square root of 68116938 is about 8253.2986132818. The cubic root of 68116938 is about 408.3993470763.

The spelling of 68116938 in words is "sixty-eight million, one hundred sixteen thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 19 23 38 46 57 69 83 114 138 166 249 313 437 498 626 874 939 1311 1577 1878 1909 2622 3154 3818 4731 5727 5947 7199 9462 11454 11894 14398 17841 21597 25979 35682 36271 43194 51958 72542 77937 108813 136781 155874 217626 273562 410343 493601 597517 820686 987202 1195034 1480803 1792551 2961606 3585102 11352823 22705646 34058469 68116938