Properties of the Number -15575

Fifteen Thousand Five Hundred Seventy-Five

Basics

Value: -15576 → -15575 → -15574

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 7 × 89

Divisors: 1, 5, 7, 25, 35, 89, 175, 445, 623, 2225

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110011010111

Octal: -36327

Duodecimal: -901B

Hexadecimal: -3cd7

Square: 242580625

Square Root: 124.79983974348686

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

a(n) = -(1/2)*(n+2)*(n² - 6·n - 1). A28494

Values of n such that L(18) and N(18) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227521

a(n) = (2·n+1) * (4·n-1). A33566

a(n) = n³ - 2·n. A242135

Expansion of x*(1 - 2·x + x² + 7·x³ - x⁴)/((1 - x)⁴*(1 + x)³). A292551

a(n) = 25·n² - 2·n. A154376

Chebyshev polynomials S(n,25) with Diophantine property. A97780

Denominators of continued fraction convergents to sqrt(621). A42193

a(2) = 1, then (p-1)*(p-4)/2, with p = prime(n), n > 2. A200050

Number of compositions of n such that the first part is 1 and the second differences of the parts are in {-10,...,10}. A239560