Properties of the Number 30866

Thirty Thousand Eight Hundred Sixty-Six

Basics

Value: 30865 → 30866 → 30867

Parity: even

Prime: No

Previous Prime: 30859

Next Prime: 30869

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 23 × 61

Divisors: 1, 2, 11, 22, 23, 46, 61, 122, 253, 506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100010010010

Octal: 74222

Duodecimal: 15A42

Hexadecimal: 7892

Square: 952709956

Square Root: 175.6872220737752

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+1) = a(n) + (if a(n) is odd then (next odd square) else (next even square)), a(0) = 1. A116955

Expansion of 1/sqrt(1 - 4·x*(1-x)⁴). A361817

Smallest composite which when sum of prime factors is repeatedly subtracted reaches a prime after n iterations. A53093

Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal. A208946

Numbers k such that k² + {1,3,7,13} are prime. A356109

Number of orbits of Aut(Z⁷) as function of the infinity norm n of the representative lattice point of the orbit, when the cardinality of the orbit is equal to 80640. A266396

Numerator of Euler(n, 2/25). A156966

[ exp(12/19)*n! ]. A30866