Properties of the Number 11949

Eleven Thousand Nine Hundred Forty-Nine

Basics

Value: 11948 → 11949 → 11950

Parity: odd

Prime: No

Previous Prime: 11941

Next Prime: 11953

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 569

Divisors: 1, 3, 7, 21, 569, 1707, 3983, 11949

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10111010101101

Octal: 27255

Duodecimal: 6AB9

Hexadecimal: 2ead

Square: 142778601

Square Root: 109.31148155614761

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) + a(n-4) with a(0) = 0, a(1) = a(2) = a(3) = 1. A3269

Expansion of (1-x)/(1-x-x⁴). A17898

a(n) is its own 4th difference. A55991

Numbers k such that A119682(k) is prime. A136682

INVERT transform of A027656: (1, 0, 2, 0, 3, 0, 4, 0, 5, ...). A158943

Square array read by antidiagonals associated with sections of 1/(1-x-x^k). A99239

Numbers of the form 68+p² (where p is a prime). A138691

Number of incongruent ways to tile a 5 X 2n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point. A68930

a(n) = A288851(n)/12. A289396

Numbers k such that 27·k+1 is a square. A219258