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68379679 = 892513061
BaseRepresentation
bin1000001001101…
…10010000011111
311202200001021201
410010312100133
5120001122204
610441340331
71460134444
oct404662037
9152601251
1068379679
1135664735
121aa976a7
1311222164
14911d9cb
15600a9a4
hex413641f

68379679 has 8 divisors (see below), whose sum is σ = 69446160. Its totient is φ = 67320000.

The previous prime is 68379673. The next prime is 68379683. The reversal of 68379679 is 97697386.

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

It is a cyclic number.

It is not a de Polignac number, because 68379679 - 27 = 68379551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68379673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20809 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (8680770).

Almost surely, 268379679 is an apocalyptic number.

68379679 is a deficient number, since it is larger than the sum of its proper divisors (1066481).

68379679 is a wasteful number, since it uses less digits than its factorization.

68379679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401.

The product of its digits is 3429216, while the sum is 55.

The square root of 68379679 is about 8269.2006264209. The cubic root of 68379679 is about 408.9237667353.

The spelling of 68379679 in words is "sixty-eight million, three hundred seventy-nine thousand, six hundred seventy-nine".

Divisors: 1 89 251 3061 22339 272429 768311 68379679