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68180298 = 2311363383
BaseRepresentation
bin1000001000001…
…01100101001010
311202021220210020
410010011211022
5114423232143
610433201310
71455344244
oct404054512
9152256706
1068180298
113553895a
121aa00236
1311182494
1490ab094
155ebb883
hex410594a

68180298 has 8 divisors (see below), whose sum is σ = 136360608. Its totient is φ = 22726764.

The previous prime is 68180237. The next prime is 68180323. The reversal of 68180298 is 89208186.

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

68180298 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681686 + ... + 5681697.

It is an arithmetic number, because the mean of its divisors is an integer number (17045076).

Almost surely, 268180298 is an apocalyptic number.

68180298 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.

68180298 is a wasteful number, since it uses less digits than its factorization.

68180298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11363388.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 68180298 is about 8257.1361863542. The cubic root of 68180298 is about 408.5259341117.

The spelling of 68180298 in words is "sixty-eight million, one hundred eighty thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 11363383 22726766 34090149 68180298