Properties of the Number 71020

Seventy-One Thousand Twenty

Basics

Value: 71019 → 71020 → 71021

Parity: even

Prime: No

Previous Prime: 71011

Next Prime: 71023

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 53 × 67

Divisors: 1, 2, 4, 5, 10, 20, 53, 67, 106, 134

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010101101100

Octal: 212554

Duodecimal: 35124

Hexadecimal: 1156c

Square: 5043840400

Square Root: 266.4957785781981

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

Square array T(i,j) = Bernoulli(2i)*Bernoulli(2j) read by antidiagonals: numerators. A71020

Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 0 and 1 0 1 vertically. A207783