Properties of the Number -21848

Twenty-One Thousand Eight Hundred Forty-Eight

Basics

Value: -21849 → -21848 → -21847

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 2731

Divisors: 1, 2, 4, 8, 2731, 5462, 10924, 21848

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -101010101011000

Octal: -52530

Duodecimal: -10788

Hexadecimal: -5558

Square: 477335104

Square Root: 147.81068973521502

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) = abs(A154879(n+1)). A115341

Third differences of the Jacobsthal sequence A001045. A154879

Number of configurations of the 5 X 2 variant of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square in one of the corners. A90036

Numbers k such that A003313(k) = A003313(6·k). A116461

Number T(n,k) of colored integer partitions of n using all colors of a k-set such that all parts have different color patterns and a pattern for part i has i distinct colors in increasing order; triangle T(n,k), n>=0, min(j:A001787(j)>=n)<=k<=n, read by rows. A326914

Number T(n,k) of colored integer partitions of n using all colors of a k-set such that all parts have different color patterns and a pattern for part i has i distinct colors in increasing order; triangle T(n,k), k>=0, k<=n<=k·2^k-1, read by columns. A326962

Number of 2n-bead balanced binary strings, rotationally equivalent to reverse. A45653

A triangle formed like Pascal's triangle, but with 4ⁿ on the borders instead of 1. A227074

a(n) = (4ⁿ + 8)/3. A155701

Numbers n such that A003313(3n) < A003313(n). A104699