Properties of the Number 89055

Eighty-Nine Thousand Fifty-Five

Basics

Value: 89054 → 89055 → 89056

Parity: odd

Prime: No

Previous Prime: 89051

Next Prime: 89057

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 1979

Divisors: 1, 3, 5, 9, 15, 45, 1979, 5937, 9895, 17811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101101111011111

Octal: 255737

Duodecimal: 43653

Hexadecimal: 15bdf

Square: 7930793025

Square Root: 298.42084377603385

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Expansion of g.f. sqrt( (1-x + sqrt(1-14·x+x²)) / (2*(1-14·x+x²)) ). A245926

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of sqrt((1+(k-4)*x+sqrt(1-2*(k+4)*x+((k-4)*x)²)) / (2 * (1-2*(k+4)*x+((k-4)*x)²))). A337389

Difference between the double factorial of the n-th nonnegative odd number and the double factorial of the n-th nonnegative even number. A122649

a(n) = (n-1)!! - (n-2)!!. A7911

Let M(n) = maximal value of (n/k)^k over all k = 1, 2, ...; a(n) = floor(M(n)). A139076

Rectangular array A(n, k) = (-1)^k*hypergeom([-k, k + n/2 - 1/2], [1], 4) with row n >= 0 and k >= 0, read by ascending antidiagonals. A300946

Coefficient triangle of the numerators of the (n-th convergents to) the continued fraction 1/(w+2/(w+3/(w+4/... . A180049

Number of integer partitions of n whose differences are an aperiodic word. A329137

Floor((prime(n)/n)ⁿ). A121623

Row sums of triangle A137629. A137630