Properties of the Number -3771

Seven Hundred Seventy-One

Basics

Value: -3772 → -3771 → -3770

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 419

Divisors: 1, 3, 9, 419, 1257, 3771

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010111011

Octal: -7273

Duodecimal: -2223

Hexadecimal: -ebb

Square: 14220441

Square Root: 61.40846847137616

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

Hurwitz inverse of triangular numbers [1,3,6,10,15,...]. A302195

a(0) = -1, a(1) = 2; a(n) = 2·a(n-1) + a(n-2). A78343

2·a(n)² + 7 is a square. A77442

Part of the y solutions of the Pell equation x² - 2·y² = +7. A253811

Fixed-k dispersion for Q = 8: Square array D(g,h) (g, h >= 1), read by ascending antidiagonals. A120861

a(n) = ((15·n + 34)/54)*2^n-1 - (-1)^n-1*(6·n + 5)/27. A127978

Atavistic Index Sequence to A089840 computed for SPINE. A153833

Prime(n)*...*prime(a(n)) is the least product of consecutive primes that is non-deficient. A7684

Prime(n)*...*prime(a(n)) is the least product of consecutive primes which is abundant. A7707

Index sequence to A089840: positions of bijections that preserve A127302 (the non-oriented form of binary trees) and whose behavior does not depend on whether there are internal or terminal nodes (leaves) in the neighborhood of any vertex. A153830