Properties of the Number 77426

Seventy-Seven Thousand Four Hundred Twenty-Six

Basics

Value: 77425 → 77426 → 77427

Parity: even

Prime: No

Previous Prime: 77419

Next Prime: 77431

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 38713

Divisors: 1, 2, 38713, 77426

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010111001110010

Octal: 227162

Duodecimal: 38982

Hexadecimal: 12e72

Square: 5994785476

Square Root: 278.25527847643787

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

T(n,k)=Number of nXk 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1. A296320

Number of primes p such that n!-p is prime. A140088

Number of nX5 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1. A296317

Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 neighboring 1. A296318

Nonsquare integers k such that the continued fraction (sqrt(k)+1)/2 has odd period length. A77426