Properties of the Number -126225

One Hundred Twenty-Six Thousand Two Hundred Twenty-Five

Basics

Value: -126226 → -126225 → -126224

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 ² × 11 × 17

Divisors: 1, 3, 5, 9, 11, 15, 17, 25, 27, 33

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: -11110110100010001

Octal: -366421

Duodecimal: -61069

Hexadecimal: -1ed11

Square: 15932750625

Square Root: 355.2815784698103

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

8-fold factorials: a(n) = ∏_k=0..n-1 (8·k+1). A45755

Triangle T(n,k) represents the coefficients of (x⁹*d/dx)ⁿ, where n=1,2,3,...;generalization of Stirling numbers of second kind A008277, Lah-numbers A008297. A223511

Octuple factorial, 8-factorial, n!8, n!!!!!!!!. A114800

a(n) = smallest k such that A260273(k) >= 2ⁿ. A261396

a(n) = (n+1)*(2·n+1)*(3·n+1)*(4·n+1). A11245

Numbers that have exactly 9 representations as a k-gonal number, P(n,k) = n*((k-2)*n - (k-4))/2, k and n >= 3. A321159

Numbers k such that φ(k)=p², where p is product of digits of k. A153427

a(n) = n*(n+1)*(7·n-6)/2. A256718

a(n) = (n + 1)²*(5·n² + 10·n + 2)/2. A269237

Numbers k such that A360327(k) > 2·k. A360328