Properties of the Number 2626

Two Thousand Six Hundred Twenty-Six

Basics

Value: 2625 → 2626 → 2627

Parity: even

Prime: No

Previous Prime: 2621

Next Prime: 2633

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 13 × 101

Divisors: 1, 2, 13, 26, 101, 202, 1313, 2626

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101001000010

Octal: 5102

Duodecimal: 162A

Hexadecimal: a42

Square: 6895876

Square Root: 51.24451190127583

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

10-gonal (or decagonal) numbers: a(n) = n*(4·n-3). A1107

Cake numbers: maximal number of pieces resulting from n planar cuts through a cube (or cake): C(n+1,3) + n + 1. A125

Doublets: base-10 representation is the juxtaposition of two identical strings. A20338

a(n) = n·prime(n). A33286

Expansion of g.f. x*(1 + 3·x)/((1 + x)*(1 - x)³). A35608

a(0) = 1; for n > 0, a(n) = 41·n² + 2. A206399

a(n) = n*(31·n + 1)/2. A22289

Numbers k such that (A003961(k)-2·k) divides (A003961(k)-σ(k)), where A003961 is fully multiplicative with a(prime(i)) = prime(i+1), and σ is the sum of divisors function. A378980

Number of Lyndon compositions of n whose reverse is not a co-Lyndon composition. A329324

Numbers k such that lcm(1,2,3,...,k)/5 equals the denominator of the k-th harmonic number H(k). A112814