Properties of the Number -7744

Seven Hundred Forty-Four

Basics

Value: -7745 → -7744 → -7743

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁶ × 11 ²

Divisors: 1, 2, 4, 8, 11, 16, 22, 32, 44, 64

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111001000000

Octal: -17100

Duodecimal: -4594

Hexadecimal: -1e40

Square: 59969536

Square Root: 88

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

Coefficients in the expansion of 1/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = 9/5. A279781

sech(tanh(x)+arctan(x))=1-4/2!*x²+112/4!*x⁴-7744/6!*x⁶... A13151

Even squares: a(n) = (2·n)². A16742

Number of subsets of integers 1 through n (including the empty set) containing no pair of integers that share a common factor. A84422

a(n) = (3·n+1)². A16778

Perfect powers of nonsquarefree numbers k that are not squareful. A386762

Composite numbers k such that the digits of the prime factors of k are either 1 or 2. A36302

a(n) = (4·n)². A16802

Numbers of the form 2ⁱ * 11^j. A3596

Triangle of generalized Stirling numbers S_2,2(n,k) read by rows (n>=1, 2<=k<=2n). A78739