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Properties of the Number 21482

Twenty-One Thousand Four Hundred Eighty-Two

Basics

Value: 21481 → 21482 → 21483

Parity: even

Prime: No

Previous Prime: 21481

Next Prime: 21487

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 23 × 467

Divisors: 1, 2, 23, 46, 467, 934, 10741, 21482

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101001111101010

Octal: 51752

Duodecimal: 10522

Hexadecimal: 53ea

Square: 461476324

Square Root: 146.56739064334877

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) is the number of terms in the analog of A121805 but starting with n, or -1 if that sequence is infinite. A330128
a(n) = ∑y=1..n ∑x=1..n floor((xk + yk)1/k) with k = 3. A211792
Number of compositions of n having exactly four fixed points. A240739
Number of n X 3 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing. A223833
Numbers n such that the Collatz iterations for n and n + 1 have the same length (A078417) but do not meet a certain condition. (See comments.) A274410
Number of ways of placing kings with no more than 1 mutual attack on an n X n chessboard symmetric about main diagonal. A143872
Number of length 1+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth. A248538
a(n) = ∑i=1..n prime(n*(i - 1) + i). A319012
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 0, 1), (1, -1, 0), (1, 1, 0)}. A150229
Number of n X 4 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 3,1,2,4,0 for x=0,1,2,3,4. A197075