Properties of the Number 21298

Twenty-One Thousand Two Hundred Ninety-Eight

Basics

Value: 21297 → 21298 → 21299

Parity: even

Prime: No

Previous Prime: 21283

Next Prime: 21313

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 23 × 463

Divisors: 1, 2, 23, 46, 463, 926, 10649, 21298

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101001100110010

Octal: 51462

Duodecimal: 103AA

Hexadecimal: 5332

Square: 453604804

Square Root: 145.938343145316

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

Partial sums of A299257. A299263

Number of partitions of at most n into at most 5 parts. A2622

Index of 2ⁿ in A109812. A305370

Number of (i,j,k) in {1,2,...,n}³ such that gcd(n,i) = gcd(n,j) = gcd(n,k). A338997

Numbers k such that A109812(k) AND A109812(k+2) = 0 (where AND denotes the bitwise AND operator). A352773

Number of Twopins positions. A5690

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 910", based on the 5-celled von Neumann neighborhood. A273764

Decimal expansion of 1/294. A21298