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68474186 = 2113112463
BaseRepresentation
bin1000001010011…
…01010101001010
311202211211220222
410011031111022
5120012133221
610443350042
71461010124
oct405152512
9152754828
1068474186
1135719740
121ab22322
1311256191
149146214
1560289ab
hex414d54a

68474186 has 8 divisors (see below), whose sum is σ = 112048704. Its totient is φ = 31124620.

The previous prime is 68474183. The next prime is 68474207. The reversal of 68474186 is 68147486.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68474183) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1556210 + ... + 1556253.

It is an arithmetic number, because the mean of its divisors is an integer number (14006088).

Almost surely, 268474186 is an apocalyptic number.

68474186 is a deficient number, since it is larger than the sum of its proper divisors (43574518).

68474186 is a wasteful number, since it uses less digits than its factorization.

68474186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112476.

The product of its digits is 258048, while the sum is 44.

The square root of 68474186 is about 8274.9130509027. The cubic root of 68474186 is about 409.1120700853.

The spelling of 68474186 in words is "sixty-eight million, four hundred seventy-four thousand, one hundred eighty-six".

Divisors: 1 2 11 22 3112463 6224926 34237093 68474186