Properties of the Number 9761

Nine Thousand Seven Hundred Sixty-One

Basics

Value: 9760 → 9761 → 9762

Parity: odd

Prime: No

Previous Prime: 9749

Next Prime: 9767

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 43 × 227

Divisors: 1, 43, 227, 9761

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10011000100001

Octal: 23041

Duodecimal: 5795

Hexadecimal: 2621

Square: 95277121

Square Root: 98.79777325425913

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 whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3). A111299

a(n) = ∑_m=1..n ∑_k=1..m prime(k). A14148

a(n) = 6·n² + 4·n + 1. A80859

Matula-Goebel numbers of rooted trees in which all positive outdegrees are the same. A298424

Numbers k such that 6k+1, 12k+1, 18k+1 and 36k+1 are all primes. A206024

Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves. A245824

Expansion of (1/x) * Series_Reversion( x/(1-x-x⁴) ). A366086

a(n) = least m such that if r and s in {1/2, 1/4, 1/6, ..., 1/2n} satisfy r < s, then r < k/m < (k+2)/m < s for some integer k. A24842

Row lengths of table A174382. A240508

G.f. A(x) satisfies: A(x) = 1 + x + x² + x³ + x⁴ * A(x/(1 - x)) / (1 - x)². A351707