Properties of the Number 78868

Seventy-Eight Thousand Eight Hundred Sixty-Eight

Basics

Value: 78867 → 78868 → 78869

Parity: even

Prime: No

Previous Prime: 78857

Next Prime: 78877

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 19717

Divisors: 1, 2, 4, 19717, 39434, 78868

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10011010000010100

Octal: 232024

Duodecimal: 39784

Hexadecimal: 13414

Square: 6220161424

Square Root: 280.8344708186657

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

Expansion of ∏_k>=1 1/(1 - (4·k-1)*x^4·k-1). A265828

Number of (n+2) X (1+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order. A252712

Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 7 or 8 king-move adjacent elements, with upper left element zero. A305583

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 7 or 8 king-move adjacent elements, with upper left element zero. A305586

Decimal concatenations of the quadruples (d1,d2,d3,d4) with elements in {2,4,6} for which there exists a prime p >= 5 such that the differences between the 5 consecutive primes starting with p are (d1,d2,d3,d4). A78868