Properties of the Number -1221260

Two Hundred Twenty-One Thousand Two Hundred Sixty

Basics

Value: -1221261 → -1221260 → -1221259

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 227 × 269

Divisors: 1, 2, 4, 5, 10, 20, 227, 269, 454, 538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100101010001010001100

Octal: -4521214

Duodecimal: -4AA8B8

Hexadecimal: -12a28c

Square: 1491475987600

Square Root: 1105.106329725787

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 ∏_k>=1 (1 + ((1 - sqrt(1 - 4·x))/2)^k). A307496

Expansion of (1/x) * Series_Reversion( x*(1-x)³/(1+x) ). A365764