Properties of the Number 40861

Forty Thousand Eight Hundred Sixty-One

Basics

Value: 40860 → 40861 → 40862

Parity: odd

Prime: No

Previous Prime: 40853

Next Prime: 40867

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 29 × 1409

Divisors: 1, 29, 1409, 40861

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111110011101

Octal: 117635

Duodecimal: 1B791

Hexadecimal: 9f9d

Square: 1669621321

Square Root: 202.1410398706804

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

Generalized Catalan triangle of Riordan type, called C(1,3). A116866

a(n) = a(n-1) + a(n-2) + a([2n/3]), where a(0) = 1, a(1) = 1, a(2) = 1. A298342

Decimal numbers m such that the product of the binary string of m and the binary string of m in reverse contains the binary string of m as a substring. A342130

Row sums of triangle A116868 (called Y(1,3)). A116862

1000000n+1, 1000000n+3, 1000000n+7, 1000000n+9 are all primes. A64965

a(n) = (2ⁿ)*a(n-1) + (2^n-1)*a(n-2), a(0)=1, a(1)=2. A96658

a(n) = (2ⁿ)*a(n-1) + (2^n-1)*a(n-2), a(0)=1, a(1)=3. A96657

Continued fraction for sqrt(891). A40861