Properties of the Number 41020

Forty-One Thousand Twenty

Basics

Value: 41019 → 41020 → 41021

Parity: even

Prime: No

Previous Prime: 41017

Next Prime: 41023

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 7 × 293

Divisors: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010000000111100

Octal: 120074

Duodecimal: 1B8A4

Hexadecimal: a03c

Square: 1682640400

Square Root: 202.53394777172542

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

Sum of the odd singletons in all partitions of n (n>=0). A singleton in a partition is a part that occurs exactly once. A276423

Matrix product of unsigned Stirling1-triangle |A008275(n,k)| and unsigned Lah-triangle |A008297(n,k)|. A79640

Sum of squares of parts of the partitions of 2n into two squarefree parts. A280316

Sequence A261220 shown in factorial base: a(n) = A007623(A261220(n)). A260743

Total Wiener index of double-star trees with n nodes. A186235

Number of (n+1) X (1+1) 0..1 arrays with every 2 X 2 subblock having a single 1 or two 1s on the same edge. A251251

Triangle: p(x) = (1 - t/c)*(1 - t)^{-x - b}; c = 1/2; b = 1. A137376

Number of permutations of 1..n containing the relative rank sequence { 3124675 } at any spacing. A159186

a(n) = ∑_k=0..n binomial(2·k,k). A6134

Numerators of continued fraction convergents to sqrt(14). A41020