Properties of the Number -2261

Two Hundred Sixty-One

Basics

Value: -2262 → -2261 → -2260

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 7 × 17 × 19

Divisors: 1, 7, 17, 19, 119, 133, 323, 2261

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100011010101

Octal: -4325

Duodecimal: -1385

Hexadecimal: -8d5

Square: 5112121

Square Root: 47.54997371187496

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,m), numerators of coefficients in a power/Fourier series expansion of the plane pendulum's exact phase space trajectory. A273506

Expansion of (1-x-x^N)/((1-x)(1-x²)(1-x³)...(1-x^N)) for N = 6. A60025

a(n) = floor(d(n)/18^n-1) where d(n) = 0, 1, -8, 352, -5120,.. and d(n) = -8·d(n-1) +288·d(n-2). A174427

E.g.f. sqrt(1+2·x*exp(2·x)). A191498

Expansion of (1 + 3·x)/(1 - 4·x + 7·x²). A271972

Coordination sequence for "pcu-i" 3D uniform tiling. A299277

Generalized 14-gonal numbers: m*(6·m-5), m = 0,+1,-1,+2,-2,+3,-3,... A195818

a(n) = (3·n² - n - 2)/2. A115067

Expansion of e.g.f.: exp( x/(1-x)² ). A82579

a(n) = n*(13·n - 9)/2. A226488