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68379659 = 337202907
BaseRepresentation
bin1000001001101…
…10010000001011
311202200001020222
410010312100023
5120001122114
610441340255
71460134415
oct404662013
9152601228
1068379659
1135664717
121aa9768b
131122214a
14911d9b5
15600a98e
hex413640b

68379659 has 4 divisors (see below), whose sum is σ = 68582904. Its totient is φ = 68176416.

The previous prime is 68379617. The next prime is 68379673. The reversal of 68379659 is 95697386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68379659 - 216 = 68314123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68379659.

It is not an unprimeable number, because it can be changed into a prime (68379359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101117 + ... + 101790.

It is an arithmetic number, because the mean of its divisors is an integer number (17145726).

Almost surely, 268379659 is an apocalyptic number.

68379659 is a deficient number, since it is larger than the sum of its proper divisors (203245).

68379659 is a wasteful number, since it uses less digits than its factorization.

68379659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203244.

The product of its digits is 2449440, while the sum is 53.

The square root of 68379659 is about 8269.1994171141. The cubic root of 68379659 is about 408.9237268673.

The spelling of 68379659 in words is "sixty-eight million, three hundred seventy-nine thousand, six hundred fifty-nine".

Divisors: 1 337 202907 68379659