Properties of the Number 72851

Seventy-Two Thousand Eight Hundred Fifty-One

Basics

Value: 72850 → 72851 → 72852

Parity: odd

Prime: No

Previous Prime: 72823

Next Prime: 72859

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 263 × 277

Divisors: 1, 263, 277, 72851

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001110010010011

Octal: 216223

Duodecimal: 361AB

Hexadecimal: 11c93

Square: 5307268201

Square Root: 269.9092440062029

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

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 55 ones. A31823

a(n) = (10·n+3)*(10·n+17). A152579

a(n) = s(2·n) where s(0) = 0, s(1) = s(2) = 1, s(n) = abs(∑_k=2..n-1 (-1)^k * s(n-k) * s(k)). A72851