Properties of the Number -84904

Eighty-Four Thousand Nine Hundred Four

Basics

Value: -84905 → -84904 → -84903

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 10613

Divisors: 1, 2, 4, 8, 10613, 21226, 42452, 84904

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10100101110101000

Octal: -245650

Duodecimal: -41174

Hexadecimal: -14ba8

Square: 7208689216

Square Root: 291.3829095880539

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 k such that 6·R_k - 5 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A98088

Triangle, read by rows, T(n, k) = 1 - floor(n*(n-1)/4) + floor(binomial(n-1,k-1) * binomial(n, k-1)/(2·k)). A176125

a(n) = (3^{3·n + 3}- 26·n - 27)/169. A198080

Numbers k such that 237·2^k-1 is prime. A50877