Properties of the Number 66953

Sixty-Six Thousand Nine Hundred Fifty-Three

Basics

Value: 66952 → 66953 → 66954

Parity: odd

Prime: No

Previous Prime: 66949

Next Prime: 66959

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 23 × 41 × 71

Divisors: 1, 23, 41, 71, 943, 1633, 2911, 66953

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10000010110001001

Octal: 202611

Duodecimal: 328B5

Hexadecimal: 10589

Square: 4482704209

Square Root: 258.7527777628677

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

a(n) is the number of representative four-color bracelets (necklaces with turning over allowed) with n beads, for n >= 4. A214309

Sum of squared coefficients of q in the q-analog of the odd double factorials. A128083

a(n) = (1/5ⁿ) * ∑_k=0..n² ( (binomial(n², k) * 2^n²-k * 3^k) (mod 5ⁿ) ). A376535

Integers of the form (k!+1)/prime(k). A66953

Array read by antidiagonals: ((z+sqrt(x))/2)^k + ((z-sqrt(x))/2)^k for columns k >= 0 and rows n >= 0, where x = 4·n+1 and y = ceiling(sqrt(x)) and z = y+1-(y mod 2). A309853