Properties of the Number -213443

Two Hundred Thirteen Thousand Four Hundred Forty-Three

Basics

Value: -213444 → -213443 → -213442

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 461 × 463

Divisors: 1, 461, 463, 213443

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100000111000011

Octal: -640703

Duodecimal: -A362B

Hexadecimal: -341c3

Square: 45557914249

Square Root: 461.9989177476501

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

Numbers that are the product of a pair of twin primes. A37074

Numbers k that form a primitive Pythagorean triple with k' and sqrt(k² + k'²), where k' is the arithmetic derivative of k. A210503

Product of twin primes of form (4·k+1,4·k+3), k>0. A71697

Numbers k that have no zero digits and such that both k+1 and (product of digits of k) + 1 are squares. A81990

Semiprimes which are sub-perfect powers. A189045

Numbers k such that k² + sopfr(k)² is a square, where sopfr = A001414. A386991

Semiprimes p·q for which p and q are successive primes and their binary representations differ from each other in one bit position only. A261080

Euler elliptic Carmichael numbers for the elliptic curve y² = x³ + 80. A290338

Numbers k such that k+1 and σ(k)+1 are both perfect squares. A89954

Numbers k equal prime(m)*prime(m+1) such that k+1 is a square and k-1 is an even semiprime. A107423