Properties of the Number 2926

Two Thousand Nine Hundred Twenty-Six

Basics

Value: 2925 → 2926 → 2927

Parity: even

Prime: No

Previous Prime: 2917

Next Prime: 2927

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 11 × 19

Divisors: 1, 2, 7, 11, 14, 19, 22, 38, 77, 133

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101101110

Octal: 5556

Duodecimal: 183A

Hexadecimal: b6e

Square: 8561476

Square Root: 54.092513345194085

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

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

Second pentagonal numbers: a(n) = n*(3·n + 1)/2. A5449

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

4-dimensional analog of centered polygonal numbers. A6325

The n-th n-gonal number: a(n) = n*(n² - 3·n + 4)/2. A60354

Numbers k such that k⁵¹² + 1 is prime. A57465

Generalized 19-gonal (or enneadecagonal) numbers: m*(17·m - 15)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303813

Generalized 30-gonal (or triacontagonal) numbers: m*(14·m - 13) with m = 0, +1, -1, +2, -2, +3, -3, ... A316729

a(n) = 2·n*(4·n + 1). A33585

Triangular numbers that are one-third of another triangular number: T(m) such that 3·T(m) = T(k) for some k. A76139