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68580016 = 244286251
BaseRepresentation
bin1000001011001…
…11001010110000
311210001020002121
410011213022300
5120024030031
610445524024
71461630511
oct405471260
9153036077
1068580016
11357911aa
121ab73614
13112923bb
149172a08
15604a011
hex41672b0

68580016 has 10 divisors (see below), whose sum is σ = 132873812. Its totient is φ = 34290000.

The previous prime is 68580013. The next prime is 68580037. The reversal of 68580016 is 61008586.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68580011) 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 as a sum of consecutive naturals, namely, 2143110 + ... + 2143141.

Almost surely, 268580016 is an apocalyptic number.

It is an amenable number.

68580016 is a deficient number, since it is larger than the sum of its proper divisors (64293796).

68580016 is a wasteful number, since it uses less digits than its factorization.

68580016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286259 (or 4286253 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 68580016 is about 8281.3052111367. The cubic root of 68580016 is about 409.3227287610.

The spelling of 68580016 in words is "sixty-eight million, five hundred eighty thousand, sixteen".

Divisors: 1 2 4 8 16 4286251 8572502 17145004 34290008 68580016