Properties of the Number 41998

Forty-One Thousand Nine Hundred Ninety-Eight

Basics

Value: 41997 → 41998 → 41999

Parity: even

Prime: No

Previous Prime: 41983

Next Prime: 41999

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 11 × 23 × 83

Divisors: 1, 2, 11, 22, 23, 46, 83, 166, 253, 506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010000001110

Octal: 122016

Duodecimal: 2037A

Hexadecimal: a40e

Square: 1763832004

Square Root: 204.93413576073655

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) = n*(n + 1)*(n + 2)*(3·n + 17)/24. A241765

Composite n coprime to 5 such that Fibonacci(n) == Legendre(n,5) (mod n). A49062

Composite n such that Fibonacci(n) == Legendre(n,5) == -1 (mod n). A94063

Catalan transform of the Pell sequence. A143464

T(n,k) = 1/k! * ∑_i=0..k (-1)^k-i *C(k,i) * A258222(n,i); triangle T(n,k), n>=0, 0<=k<=n, read by rows. A258223

The numbers k for which Lucas(k) are Niven numbers. A337449

Number of (n+2)X(2+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011. A261549

Floor (e^{n / log(n})). A96181

Triangle read by rows: T(n,k) = A033306(n,k) - A033306(n,0) + 1. A174640

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00001011. A261553