Properties of the Number 66449

Sixty-Six Thousand Four Hundred Forty-Nine

Basics

Value: 66448 → 66449 → 66450

Parity: odd

Prime: Yes

Previous Prime: 66431

Next Prime: 66457

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 66449

Divisors: 1, 66449

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000001110010001

Octal: 201621

Duodecimal: 32555

Hexadecimal: 10391

Square: 4415469601

Square Root: 257.77703543954414

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 having only {4, 6, 9} as digits. A107666

Primes whose digits are composite; primes having only {4, 6, 8, 9} as digits. A51416

Primes p such that 42·p-1, 42·p+1 and 48·p-1, 48·p+1 are twin primes. A138697

Numbers that are primes and remain prime for four successive applications of incrementing each digit by 2 with carries ignored. A88788

Primes that remain prime through 4 iterations of the function f(x) = 9x + 8. A23326

The Szeged index of a benzenoid consisting of a linear chain of n hexagons. A245830

Numbers k such that A073734(k) is neither squarefree nor a prime power. A365899

Binomial(n, φ(n)), where φ(n) is the Euler totient function. A66449