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68380134 = 2311396689
BaseRepresentation
bin1000001001101…
…10010111100110
311202200001220120
410010312113212
5120001131014
610441342410
71460135664
oct404662746
9152601816
1068380134
1135665009
121aa97a06
1311222424
14911dc34
15600aba9
hex41365e6

68380134 has 8 divisors (see below), whose sum is σ = 136760280. Its totient is φ = 22793376.

The previous prime is 68380129. The next prime is 68380139. The reversal of 68380134 is 43108386.

It is an interprime number because it is at equal distance from previous prime (68380129) and next prime (68380139).

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

68380134 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68380095 and 68380104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68380139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5698339 + ... + 5698350.

It is an arithmetic number, because the mean of its divisors is an integer number (17095035).

Almost surely, 268380134 is an apocalyptic number.

68380134 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.

68380134 is a wasteful number, since it uses less digits than its factorization.

68380134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11396694.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68380134 is about 8269.2281381033. The cubic root of 68380134 is about 408.9246737294.

The spelling of 68380134 in words is "sixty-eight million, three hundred eighty thousand, one hundred thirty-four".

Divisors: 1 2 3 6 11396689 22793378 34190067 68380134