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68584016 = 2423318397
BaseRepresentation
bin1000001011010…
…00001001010000
311210001102120202
410011220021100
5120024142031
610445554332
71461645254
oct405501120
9153042522
1068584016
1135794206
121ab759a8
1311294177
149174264
15604b2cb
hex4168250

68584016 has 20 divisors (see below), whose sum is σ = 133459092. Its totient is φ = 34142976.

The previous prime is 68584013. The next prime is 68584027. The reversal of 68584016 is 61048586.

It can be written as a sum of positive squares in 2 ways, for example, as 39639616 + 28944400 = 6296^2 + 5380^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68584013) 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, 5471 + ... + 12926.

Almost surely, 268584016 is an apocalyptic number.

It is an amenable number.

68584016 is a deficient number, since it is larger than the sum of its proper divisors (64875076).

68584016 is a wasteful number, since it uses less digits than its factorization.

68584016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18638 (or 18632 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 68584016 is about 8281.5467154391. The cubic root of 68584016 is about 409.3306866627.

The spelling of 68584016 in words is "sixty-eight million, five hundred eighty-four thousand, sixteen".

Divisors: 1 2 4 8 16 233 466 932 1864 3728 18397 36794 73588 147176 294352 4286501 8573002 17146004 34292008 68584016