Properties of the Number -221994

Two Hundred Twenty-One Thousand Nine Hundred Ninety-Four

Basics

Value: -221995 → -221994 → -221993

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 4111

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 4111, 8222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110110001100101010

Octal: -661452

Duodecimal: -A8576

Hexadecimal: -3632a

Square: 49281336036

Square Root: 471.1623923871684

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

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum of every 2X2 subblock equal. A237035

Number of n-digit base-3 deletable primes. A96236

Number of (n+1) X (2+1) 0..2 arrays with the maximum of every 2 X 2 subblock equal. A237029

Number of (n+1)X(3+1) 0..2 arrays with the maximum of every 2X2 subblock equal. A237030