Properties of the Number 79778

Seventy-Nine Thousand Seven Hundred Seventy-Eight

Basics

Value: 79777 → 79778 → 79779

Parity: even

Prime: No

Previous Prime: 79777

Next Prime: 79801

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 2 × 113 × 353

Divisors: 1, 2, 113, 226, 353, 706, 39889, 79778

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011011110100010

Octal: 233642

Duodecimal: 3A202

Hexadecimal: 137a2

Square: 6364529284

Square Root: 282.44999557443793

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 (n+1)X(k+1) binary arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum. A186850

a(n) = 100·n² - 151·n + 57. A157626

Number of (n+1) X 3 binary arrays with no 2 X 2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2 X 2 subblock diagonal sum less antidiagonal sum. A186843

Number of (n+1)X7 binary arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum. A186847

a(n) = smallest prime number such that a(n) - n is composite. A79778