:96 (number)

{{redirect|Number 96|the Australian soap opera|Number 96 (TV series)|the 1974 drama film|Number 96 (film)}}

{{Infobox number

| number = 96

| divisor = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96

}}

96 (ninety-six) is the natural number following 95 and preceding 97. It is a number that appears the same when rotated by 180 degrees.

In mathematics

File:96-square-difference.png

96 is:

  • an octagonal number.{{Cite web|url=https://oeis.org/A000567|title=Sloane's A000567 : Octagonal numbers|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-28}}
  • a refactorable number.{{Cite web|url=https://oeis.org/A033950|title=Sloane's A033950: Refactorable numbers|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-28}}
  • an untouchable number.{{Cite web|url=https://oeis.org/A005114|title=Sloane's A005114 : Untouchable numbers|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-28}}
  • a semiperfect number since it is a multiple of 6.
  • an abundant number since the sum of its proper divisors is greater than 96.
  • the fourth Granville number and the second non-perfect Granville number. The next Granville number is 126, the previous being 24.
  • the sum of Euler's totient function φ(x) over the first seventeen integers.
  • strobogrammatic in bases 10 (9610), 11 (8811) and 95 (1195).
  • palindromic in bases 11 (8811), 15 (6615), 23 (4423), 31 (3331), 47 (2247) and 95 (1195).
  • an Erdős–Woods number, since it is possible to find sequences of 96 consecutive integers such that each inner member shares a factor with either the first or the last member.{{Cite web|url=https://oeis.org/A059756|title=Sloane's A059756 : Erdős-Woods numbers|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-28}}
  • divisible by the number of prime numbers (24) below 96.
  • the smallest natural number that can be expressed as the difference of two nonzero squares in more than three ways: 10^2-2^2, 11^2-5^2, 14^2-10^2 or 25^2-23^2.{{cite OEIS|A334078}}

The number of divisors of 96 is 12.{{Cite OEIS|A000005|d(n) (also called tau(n) or sigma_0(n)), the number of divisors of n.}} As no smaller number has more than 12 divisors, 96 is a largely composite number.{{Cite OEIS|A067128|Ramanujan's largely composite numbers}}

Skilling's figure, a degenerate uniform polyhedron, has a Euler characteristic \chi=-96.

Every integer greater than 96 may be represented as a sum of distinct super-prime numbers.

References

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