Properties of the Number 78338

Seventy-Eight Thousand Three Hundred Thirty-Eight

Basics

Value: 78337 → 78338 → 78339

Parity: even

Prime: No

Previous Prime: 78317

Next Prime: 78341

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 13 × 23 × 131

Divisors: 1, 2, 13, 23, 26, 46, 131, 262, 299, 598

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011001000000010

Octal: 231002

Duodecimal: 39402

Hexadecimal: 13202

Square: 6136842244

Square Root: 279.8892638169603

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

House numbers: a(n) = (n+1)³ + ∑_i=1..n i². A51662

Number of 2Xn 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A281470

a(n) = ∑_{k=0..floor(2·n/9)} binomial(2·n-7·k,2·k). A392399

Let u(1)=u(2)=u(3)=1 and u(n)=(-1)ⁿ*sign(u(n-1)-u(n-2))*u(n-3), then a(n)=sum(k=1,n,u(k)). A78338