Properties of the Number 42841

Forty-Two Thousand Eight Hundred Forty-One

Basics

Value: 42840 → 42841 → 42842

Parity: odd

Prime: Yes

Previous Prime: 42839

Next Prime: 42853

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 42841

Divisors: 1, 42841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011101011001

Octal: 123531

Duodecimal: 20961

Hexadecimal: a759

Square: 1835351281

Square Root: 206.9806754264755

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

Primes with 23 as smallest positive primitive root. A61335

Number of ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n. A71778

Number of locally disjoint rooted identity trees with n nodes, meaning no branch overlaps any other branch of the same root. A316471

G.f. A(x) = ∑_n=-oo..+oo xⁿ * (1 + xⁿ)^2·n. A260147

Numbers n such that the decimal number concat(9,n) is a square. A273364

Star-hex numbers. A6062

a(n) = n³ - n + 1. A61600

a(n) = smallest prime of the form n*(n+1)*(n+2)*...*(n+k) + 1, or 0 if no such prime exists. A87564

Primes of the form 120^k - 119^k. A254298

Primes in A003154. A83577