Properties of the Number -221719

Two Hundred Twenty-One Thousand Seven Hundred Nineteen

Basics

Value: -221720 → -221719 → -221718

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 221719

Divisors: 1, 221719

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110001000010111

Octal: -661027

Duodecimal: -A8387

Hexadecimal: -36217

Square: 49159314961

Square Root: 470.8704705117959

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

Primes p such that the Fibonacci iterations starting with (1, p) lead to a "nine digits anagram". A34588

Second term of weak prime septet: p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1) < p(m+3)-p(m+2) < p(m+4)-p(m+3) < p(m+5)-p(m+4). A54835

Number of partitions of 2·n in which (number of odd parts) / (number of even parts) = 2/3. A393517