Properties of the Number 70780

Seventy Thousand Seven Hundred Eighty

Basics

Value: 70779 → 70780 → 70781

Parity: even

Prime: No

Previous Prime: 70769

Next Prime: 70783

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 3539

Divisors: 1, 2, 4, 5, 10, 20, 3539, 7078, 14156, 17695

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010001111100

Octal: 212174

Duodecimal: 34B64

Hexadecimal: 1147c

Square: 5009808400

Square Root: 266.045108957109

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

a(n) = number of distinct prime divisors (taken together) of numbers of the form x²+1 for x<=10ⁿ. A144848

Coefficient of·in the reduction by x² -> x+1 of the polynomial p(n,x) defined at Comments. A192952

Number of minimal total dominating sets in the n X n queen graph. A347919

a(n) = binomial((n+1)²,n). A70780