Properties of the Number 2823

Two Thousand Eight Hundred Twenty-Three

Basics

Value: 2822 → 2823 → 2824

Parity: odd

Prime: No

Previous Prime: 2819

Next Prime: 2833

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 941

Divisors: 1, 3, 941, 2823

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101100000111

Octal: 5407

Duodecimal: 1773

Hexadecimal: b07

Square: 7969329

Square Root: 53.131911315140925

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

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.3.4.3.4 2D tiling (cf. A219529). A299255

a(n) = ∑_k=0..n (-1)^k * binomial(n, k) * q(k), where q(k) is A000009 (partitions into distinct parts). A293467

Values of n such that L(11) and N(11) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227449

a(n) = p(1)p(n) + p(2)p(n-1) + ... + p(k)p(n-k+1), where k = [ n/2 ], p = A000040, the primes. A25129

Discriminants of imaginary quadratic fields with class number 26 (negated). A351664

Triangle read by rows where T(n,k) is the number of unlabeled connected multigraphs with loops with n edges and k vertices. A322115

Numbers k such that p=k²+2 and p+2 are primes. A86381

Number of polyhexes of class PF2 with a particular symmetry. A30525

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock equal. A237067

Numbers k such that k¹⁰ == 1 (mod 11³). A56085