Properties of the Number -225721

Two Hundred Twenty-Five Thousand Seven Hundred Twenty-One

Basics

Value: -225722 → -225721 → -225720

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 225721

Divisors: 1, 225721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110111000110111001

Octal: -670671

Duodecimal: -AA761

Hexadecimal: -371b9

Square: 50949969841

Square Root: 475.10104188477635

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 tan(x)*cos(sinh(x)). A9728

a(n) = n! * ∑_{k=0..floor(n/4)} (k/24)^k / (k! * (n-4·k)!). A362352

Lexicographically earliest sequence of prime numbers whose partial products, starting from the second, are all Fermat pseudoprimes to base 2 (A001567). A374028

Lexicographically earliest strictly increasing sequence of prime numbers whose partial products, starting from the second, are all Fermat pseudoprimes to base 2 (A001567). A374029

Primes p such that if q is the next prime, the sum (with multiplicity) of prime factors of p² + q² is a square. A359443

Expansion of tanh(x)*exp(sin(x)). A9828