Properties of the Number -782

Seven Hundred Eighty-Two

Basics

Value: -783 → -782 → -781

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 17 × 23

Divisors: 1, 2, 17, 23, 34, 46, 391, 782

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100001110

Octal: -1416

Duodecimal: -552

Hexadecimal: -30e

Square: 611524

Square Root: 27.964262908219126

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

Expansion of (1 - x + 2·x²) / (1 - x³ + x⁴). A110062

Expansion of (sqrt(1+2x+9x²)+x-1)/(2x). A125695

Expansion of exp( ∑_n>=1 -3*σ(2n)*xⁿ/n ) in powers of x. A185653

Difference between sums of quadratic residues and non-residues modulo n that are coprime to n. A255643

Expansion of ∏_m>=1 (1-m·q^m)²³. A22683

Matrix inverse of triangle A055363(n+2,k). A55370

Inverse of binomial transform of Whitney triangle. A97761

a(0) = 121; for n>0, a(n) = a(n-1) - n + 1. A137517

Numerator of Hermite(n, 5/21). A159709

Riordan array (2c(-x)-1, xc(-x)³), c(x) the g.f. of A000108. A159971