Properties of the Number -22761

Twenty-Two Thousand Seven Hundred Sixty-One

Basics

Value: -22762 → -22761 → -22760

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 281

Divisors: 1, 3, 9, 27, 81, 281, 843, 2529, 7587, 22761

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -101100011101001

Octal: -54351

Duodecimal: -11209

Hexadecimal: -58e9

Square: 518063121

Square Root: 150.86749152816188

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

Numbers k such that 7^k + 12 is prime. A152213

a(n) = (2·n+1)*(7·n+1). A33572

a(n) = ∑_k=0..4 binomial(8,k)*binomial(n,k). A247609

a(n) = round(n*φ¹⁴), where φ is the golden ratio, A001622. A4949

Odd 9-gonal (or enneagonal) numbers. A28991

Denominators of continued fraction convergents to sqrt(897). A42735

Enneagonal numbers divisible by 9. A117796

a(n) = n³ + 114·n. A122562

Number of labeled nodes in generation n of a rooted tree where a node with label k has k child nodes with distinct labels, such that each child node is assigned the least unused label in the path that leads back to the root node with label '1'. A125033

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 81", based on the 5-celled von Neumann neighborhood. A270100