Properties of the Number 40869

Forty Thousand Eight Hundred Sixty-Nine

Basics

Value: 40868 → 40869 → 40870

Parity: odd

Prime: No

Previous Prime: 40867

Next Prime: 40879

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 19 × 239

Divisors: 1, 3, 9, 19, 57, 171, 239, 717, 2151, 4541

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111110100101

Octal: 117645

Duodecimal: 1B799

Hexadecimal: 9fa5

Square: 1670275161

Square Root: 202.16082706597734

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) = a(n - 1) - 2·a(n - 2) + a(n - 3) - 6·a(n - 4) + 3·a(n - 5). A122583

Expansion of (1/x) * Series_Reversion( x * ( ∑_k=0..5 (-x)^k ) ). A393658

McKay-Thompson series of class 28D for Monster. A58609

Integers m such that iterating the map f(x) = x² + 1 on m generates a number ending with m in binary format. A354832

Continued fraction for sqrt(899). A40869