Properties of the Number 9129

Nine Thousand One Hundred Twenty-Nine

Basics

Value: 9128 → 9129 → 9130

Parity: odd

Prime: No

Previous Prime: 9127

Next Prime: 9133

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 179

Divisors: 1, 3, 17, 51, 179, 537, 3043, 9129

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110101001

Octal: 21651

Duodecimal: 5349

Hexadecimal: 23a9

Square: 83338641

Square Root: 95.54580053565934

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

Triangle of second-order Eulerian numbers of type B. A214406

Least nontrivial multiple of the n-th prime beginning with 9. A78293

Variant of triangle A008301, read by rows of 2·n+1 terms, such that the first column is the secant numbers (A000364). A125053

a(0)=1, a(1)=1, a(n) = 5·a(n-1) + 4·a(n-2). A123270

Central terms of triangle A125053. A125054

a(n) = (2·n+1)!! * (∑_k=1..n 1/(2·k+1)). A334670

Square array T(n,k), n>=0, k>=0, read by antidiagonals: T(n,k) = ((2n+1)!!)^k * ∑_j=1..n 1/(2·j+1)^k. A335095

Expansion of ( (1/x) * Series_Reversion( x * ((1-x) / C(x))² ) )^1/2, where C(x) is the g.f. of A000108. A381818

Partial sums of A051865. A50441

Numbers which need eleven 'Reverse and Add' steps to reach a palindrome. A65216