Properties of the Number 66889

Sixty-Six Thousand Eight Hundred Eighty-Nine

Basics

Value: 66888 → 66889 → 66890

Parity: odd

Prime: Yes

Previous Prime: 66883

Next Prime: 66919

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 66889

Divisors: 1, 66889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010101001001

Octal: 202511

Duodecimal: 32861

Hexadecimal: 10549

Square: 4474138321

Square Root: 258.62907802488104

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 {6, 8, 9} as digits. A385800

Primes having only {0, 6, 8, 9} as digits. A53580

Every digit of prime and its index contains a loop (only digits 0,4,6,8,9 in prime and its index). A107625

Slowest-increasing sequence of noncomposite numbers such that the partial sums of the sequence are perfect powers. A137355

Primes with digit sum = 37. A106771

Primes with minimal digit = 6. A106106

Primes with repdigit indices (in decimal). A258433

Prime sums of 4 positive 5th powers. A123033

Prime numbers p for which none of its digits appear in the decimal expansion of p/π(p). A117272

For a positive number k, let L(k) denote the list consisting of k followed by the prime factors of k, with repetition, in nondecreasing order; sequence gives composite k such that the digits of L(k) are in nondecreasing order. A372029