Properties of the Number 90930

Ninety Thousand Nine Hundred Thirty

Basics

Value: 90929 → 90930 → 90931

Parity: even

Prime: No

Previous Prime: 90917

Next Prime: 90931

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 7 × 433

Divisors: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110001100110010

Octal: 261462

Duodecimal: 44756

Hexadecimal: 16332

Square: 8268264900

Square Root: 301.54601638887556

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

Integers setting a record for the absolute minimal difference from the imaginary part of a nontrivial zero of the Riemann ζ function. A255742

The number of 1 X n Haunted Mirror Maze puzzles with a unique solution ending with a mirror. A204091

a(n) = 5·a(n-2) - 2·a(n-4), with initial terms 0,1,2,4. A79162

Expansion of g.f. -2·x/(1 - 5·x + 2·x²). A106709

Number of partitions of 5n with equal number of parts congruent to each of 1, 2, 3 and 4 modulo 5. A202192

Number of n-step paths on cubic lattice from (0,0,0) to (1,0,0) with moves in any direction but no zero moves allowed. A219671

Number of partitions of n with equal number of parts congruent to each of 1, 2, 3 and 4 (mod 5). A46775

Matrix inverse of triangle A227342. A227343

G.f.: A(x,y) = ∑_n>=0 xⁿ * ∏_k=1..n (k + x·y) / (1 + k·x*y), as a triangle read by rows. A231171

a(n) = 5·a(n-2) - 2·a(n-4), n >= 4. A109165