Properties of the Number 76905

Seventy-Six Thousand Nine Hundred Five

Basics

Value: 76904 → 76905 → 76906

Parity: odd

Prime: No

Previous Prime: 76883

Next Prime: 76907

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 1709

Divisors: 1, 3, 5, 9, 15, 45, 1709, 5127, 8545, 15381

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010110001101001

Octal: 226151

Duodecimal: 38609

Hexadecimal: 12c69

Square: 5914379025

Square Root: 277.31750756127894

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

Binary palindromes (cf. A006995) such that the number of contiguous palindromic bit patterns is minimal (for a given number of places). A217099

Least binary palindrome (cf. A006995) with n binary digits such that the number of contiguous palindromic bit patterns is minimal. A217097

Irregular triangle read by rows: T(n,k) is the number of free polyaboloes (or polytans) with n cells of which 2·k share a hypotenuse in pairs (making up k squares), 0 <= k <= n/2. A391191

Triangle read by rows: T(n,k) is the number of free polyaboloes (or polytans) with n cells (counted as in A390996) of which k are square cells consisting of two triangles sharing a hypotenuse, 0 <= k <= n. A391192

a(1)=1, a(n)=n-a(n-1)+a(a(n-1))-a(a(a(n-1))). A76905