Properties of the Number 90390

Ninety Thousand Three Hundred Ninety

Basics

Value: 90389 → 90390 → 90391

Parity: even

Prime: No

Previous Prime: 90379

Next Prime: 90397

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 23 × 131

Divisors: 1, 2, 3, 5, 6, 10, 15, 23, 30, 46

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000100010110

Octal: 260426

Duodecimal: 44386

Hexadecimal: 16116

Square: 8170352100

Square Root: 300.6492973549082

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

T(n,k)=Number of length n+4 0..k arrays with no five consecutive terms having four times any element equal to the sum of the remaining four. A249466

Number of balanced numbers <= 2ⁿ. A78662

a(0)=a(1)=a(2)=a(3)=a(4)=a(5)=1; a(n)=a(n-1)+a(n-2)-a(n-4)+a(n-6) for n>=6. A109537

Number of length 1+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four. A249467

Products of 5 distinct primes that are sandwiched between sphenic numbers. A376929

Number of ways to place zero or more nonadjacent 1,1 2,0 2,1 3,2 3,3 4,4 polyhexes in any orientation on a planar nXnXn triangular grid. A155305

T(n,k)=Number of idempotent n X n -k..k matrices of rank 2. A220472

T(n,k)=Number of idempotent n X n -k..k matrices of rank n-2. A220473

Repeatedly multiply (1,0,0) by ([1,2,2],[2,1,2],[2,2,3]); sequence gives leading entry. A90390