Properties of the Number -90988

Ninety Thousand Nine Hundred Eighty-Eight

Basics

Value: -90989 → -90988 → -90987

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 23 ² × 43

Divisors: 1, 2, 4, 23, 43, 46, 86, 92, 172, 529

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10110001101101100

Octal: -261554

Duodecimal: -447A4

Hexadecimal: -1636c

Square: 8278816144

Square Root: 301.642172117892

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

Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of the consecutive step patterns 010 or 101, where 1=up and 0=down; triangle T(n,k), n >= 0, k = max(0, n-3), read by rows. A295987

G.f.: ∑_n>=0 xⁿ * ∑_k=0..n binomial(n,k)³ * x^2·k. A248658

Number of (w,x,y,z) with all terms in {1,...,n} and w > (geometric mean of x,y,z). A212144