Properties of the Number 84841

Eighty-Four Thousand Eight Hundred Forty-One

Basics

Value: 84840 → 84841 → 84842

Parity: odd

Prime: No

Previous Prime: 84827

Next Prime: 84857

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 37 × 2293

Divisors: 1, 37, 2293, 84841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100101101101001

Octal: 245551

Duodecimal: 41121

Hexadecimal: 14b69

Square: 7197995281

Square Root: 291.27478435319455

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

Number of intersections of diagonals in the interior of a regular n-gon. A6561

Indices k such that 3 plus the k-th triangular number is a perfect square. A154138

a(n) = n! * ∑_{k=0..floor(n/3)} (n - 3·k)^k/(6^k * (n - 3·k)!). A356328

Semiprimes formed by concatenating n, n, and 1 for n = 1, 2, 3,.... A210711

Diagonal of the A135356 triangle. A133265

Write the numbers 1, 2, ... in a triangle with n terms in the n-th row; a(n) = number of deficient integers in n-th row. A84841