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68966842 = 2779127491
BaseRepresentation
bin1000001110001…
…01100110111010
311210202212201111
410013011212322
5120123414332
610502110534
71465131340
oct407054672
9153685644
1068966842
1135a2589a
121b11b44a
13113994a9
149233990
1560c4947
hex41c59ba

68966842 has 32 divisors (see below), whose sum is σ = 120913920. Its totient is φ = 28894320.

The previous prime is 68966819. The next prime is 68966861. The reversal of 68966842 is 24866986.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 15 ways as a sum of consecutive naturals, for example, 140217 + ... + 140707.

It is an arithmetic number, because the mean of its divisors is an integer number (3778560).

Almost surely, 268966842 is an apocalyptic number.

68966842 is a deficient number, since it is larger than the sum of its proper divisors (51947078).

68966842 is a wasteful number, since it uses less digits than its factorization.

68966842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706.

The product of its digits is 995328, while the sum is 49.

The square root of 68966842 is about 8304.6277460221. The cubic root of 68966842 is about 410.0908820940.

The spelling of 68966842 in words is "sixty-eight million, nine hundred sixty-six thousand, eight hundred forty-two".

Divisors: 1 2 7 14 79 127 158 254 491 553 889 982 1106 1778 3437 6874 10033 20066 38789 62357 70231 77578 124714 140462 271523 436499 543046 872998 4926203 9852406 34483421 68966842