Properties of the Number -1711

Seven Hundred Eleven

Basics

Value: -1712 → -1711 → -1710

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 29 × 59

Divisors: 1, 29, 59, 1711

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11010101111

Octal: -3257

Duodecimal: -BA7

Hexadecimal: -6af

Square: 2927521

Square Root: 41.36423575989287

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

G.f. A(x) satisfies: A(x) = x + x·A(A(-x)). A347080

Second hexagonal numbers: a(n) = n*(2·n + 1). A14105

Centered 9-gonal (also known as nonagonal or enneagonal) numbers. Every third triangular number, starting with a(1)=1. A60544

Centered 10-gonal numbers. A62786

a(n) = p*(p-1)/2 for p = prime(n). A8837

Number of integer compositions of n whose leaders of strictly decreasing runs are distinct. A374761

Number of transitive finitary sets with n brackets. Number of transitive rooted identity trees with n nodes. A279861

Concentric pentagonal numbers: floor( 5·n² / 4 ). A32527

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 24. A51989

Triangular numbers which are the product of two primes. A68443