Properties of the Number 11861

Eleven Thousand Eight Hundred Sixty-One

Basics

Value: 11860 → 11861 → 11862

Parity: odd

Prime: No

Previous Prime: 11839

Next Prime: 11863

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 29 × 409

Divisors: 1, 29, 409, 11861

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111001010101

Octal: 27125

Duodecimal: 6A45

Hexadecimal: 2e55

Square: 140683321

Square Root: 108.90821823902914

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

T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nXk array. A219381

a(n) = n*(14·n + 3). A195025

Maximum starting value of X such that repeated replacement of X with X-ceiling(X/6) requires n steps to reach 0. A279076

Rocket Sequence 34: a(0)=34, a(n) = A073846(a(n-1)). A261314

a(n) is the smallest integer k such that the n-th (forward) difference of the partition sequence A000041 is positive from k onwards. A119712

Positive numbers y such that y² is of the form x²+(x+409)² with integer x. A160577

a(n) is the sum, over all overpartitions of n, of the overlined parts. A335666

Numbers k such that the continued fraction for sqrt(k) has period 43. A20382

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted then there are a pair of central terms both equal to 8. A31421

Number of nX5 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX5 array. A219378