Properties of the Number -221227

Two Hundred Twenty-One Thousand Two Hundred Twenty-Seven

Basics

Value: -221228 → -221227 → -221226

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 221227

Divisors: 1, 221227

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110000000101011

Octal: -660053

Duodecimal: -A8037

Hexadecimal: -3602b

Square: 48941385529

Square Root: 470.34774369608704

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

Beginning with 7, least prime such that concatenation of first n terms and its digit reversal both are primes. A379761

Primes that are concatenations of k with k + 6. A32629

G.f.: A(x) = exp( ∑_n>=1 G_n(x)ⁿ/n ) where G_n(x) = x + x·G_n(x)ⁿ and A(x) = ∑_n>=1 a(n)*xⁿ/floor(n/2)!. A194558