Properties of the Number 66923

Sixty-Six Thousand Nine Hundred Twenty-Three

Basics

Value: 66922 → 66923 → 66924

Parity: odd

Prime: Yes

Previous Prime: 66919

Next Prime: 66931

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 66923

Divisors: 1, 66923

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10000010101101011

Octal: 202553

Duodecimal: 3288B

Hexadecimal: 1056b

Square: 4478687929

Square Root: 258.6948008754718

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 from merging of 5 successive digits in decimal expansion of π. A104825

Positive integers k such that (k+1)⁴ has a divisor congruent to -1 modulo k. A350916

a(0) = 3, a(1) = 3, and a(n) = 6·a(n-1) - a(n-2) - 4 for n >= 2. A350921

a(n) = 44·n² - 1. A158628

Number of (1+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 5 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 5 6 or 7. A252680

Let f(x) = φ(x) + σ(x); a(n) = least k such that at k begins a maximal run of length n of consecutive strict local extrema of f, or 0 if no such k exists. A66923

Integers k such that A264137(k) < A060385(k). A271309