Properties of the Number 90504

Ninety Thousand Five Hundred Four

Basics

Value: 90503 → 90504 → 90505

Parity: even

Prime: No

Previous Prime: 90499

Next Prime: 90511

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ³ × 419

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110000110001000

Octal: 260610

Duodecimal: 44460

Hexadecimal: 16188

Square: 8190974016

Square Root: 300.83882728132016

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 o.g.f. 1/(1 - 4·x - 6·x² - 4·x³ - x⁴). A374454

A symmetrical triangle sequence:t(n,m)=(-1)^m*(n - m)!*Binomial[n - 1, m] + (-1)^{n - m + 1}*(n - (n - m + 1))!*Binomial[n - 1, n - m + 1]. A176862

a(n) = a(n-1)*a(n-2) with a(0)=1, a(1)=4. A10099

Beginning with 1, numbers such that the differences a(k)-a(k-1) are distinct and every concatenation n>1 is prime. A90504