Properties of the Number 76685

Seventy-Six Thousand Six Hundred Eighty-Five

Basics

Value: 76684 → 76685 → 76686

Parity: odd

Prime: No

Previous Prime: 76679

Next Prime: 76697

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 7 ² × 313

Divisors: 1, 5, 7, 35, 49, 245, 313, 1565, 2191, 10955

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010101110001101

Octal: 225615

Duodecimal: 38465

Hexadecimal: 12b8d

Square: 5880589225

Square Root: 276.9205662279348

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 integers k less than 10ⁿ such that the decimal representation of k lacks the digits 1,2,3,4 and 5, at least one of digits 6,7 and at least one of digits 8,9. A126645

T(n,k)=Number of length n+k+2 0..k arrays with every value 0..k appearing at least once in every consecutive k+3 elements, and new values 0..k introduced in order. A242322

a(n) = max(core(n),φ(n)) where core(n) is the squarefree part of n. A76685