Properties of the Number 7844

Seven Thousand Eight Hundred Forty-Four

Basics

Value: 7843 → 7844 → 7845

Parity: even

Prime: No

Previous Prime: 7841

Next Prime: 7853

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 37 × 53

Divisors: 1, 2, 4, 37, 53, 74, 106, 148, 212, 1961

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111010100100

Octal: 17244

Duodecimal: 4658

Hexadecimal: 1ea4

Square: 61528336

Square Root: 88.56635930193812

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

Numbers that are the sum of 9 nonzero 8th powers. A3387

Meandric numbers for a river crossing up to 4 parallel roads at n points. A208062

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order. A231396

Number of compositions of n with no part divisible by the next. A328460

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with values 0..2 introduced in row major order. A231219

Numbers that are the sum of nine fourth powers in seven or more ways. A345591

Numbers that are the sum of nine fourth powers in exactly seven ways. A345849

Cubes (n·n * n) in carryless arithmetic mod 10. A169885

Expansion of ∏_k>=1 (1 + x^3·k-1)^3·k-1. A262948

L.g.f.: ∑_n=-oo..+oo (x - x^2·n-1)^2·n-1 / (2·n-1). A293129