Properties of the Number 66974

Sixty-Six Thousand Nine Hundred Seventy-Four

Basics

Value: 66973 → 66974 → 66975

Parity: even

Prime: No

Previous Prime: 66973

Next Prime: 66977

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 33487

Divisors: 1, 2, 33487, 66974

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000010110011110

Octal: 202636

Duodecimal: 32912

Hexadecimal: 1059e

Square: 4485516676

Square Root: 258.79335385592884

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

Number of 0..3 arrays of length n with each element unequal to at least one neighbor, with new values introduced in 0..3 order. A221454

Number of primes of the form 1 + b⁴ for 1 < b < 10ⁿ. A215048

T(n,k)=Number of 0..k arrays of length n with each element unequal to at least one neighbor, with new values introduced in 0..k order. A221459

Decimal expansion of Shanks's constant: the Hardy-Littlewood constant for A000068. A337607

Integers of the form (1/m)*sum(i=1,m,binomial(2i,i)). A66974