Properties of the Number 79825

Seventy-Nine Thousand Eight Hundred Twenty-Five

Basics

Value: 79824 → 79825 → 79826

Parity: odd

Prime: No

Previous Prime: 79823

Next Prime: 79829

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 31 × 103

Divisors: 1, 5, 25, 31, 103, 155, 515, 775, 2575, 3193

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10011011111010001

Octal: 233721

Duodecimal: 3A241

Hexadecimal: 137d1

Square: 6372030625

Square Root: 282.5331838917333

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

Irregular triangle read by rows: T(n,k) is the number of essential graphs with n nodes and k (directed or undirected) edges (n >= 1, 0 <= k <= n*(n-1)/2). A368569

E.g.f. satisfies: A(x/A(x)) = exp(x). A144681

Sum of numbers in n-th upward diagonal of triangle in A079826. A79825