Properties of the Number 21434

Twenty-One Thousand Four Hundred Thirty-Four

Basics

Value: 21433 → 21434 → 21435

Parity: even

Prime: No

Previous Prime: 21433

Next Prime: 21467

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 1531

Divisors: 1, 2, 7, 14, 1531, 3062, 10717, 21434

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101001110111010

Octal: 51672

Duodecimal: 104A2

Hexadecimal: 53ba

Square: 459416356

Square Root: 146.40355186948165

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

Number of rooted compound windmills (mobiles) of n nodes. A32200

Number of partitions of n where the difference between consecutive parts is at most 5. A238865

Numbers k such that (k / sum of digits of k) and (k+1 / sum of digits of k+1) are both prime. A85775

Numbers k such that the first 9 decimal digits of the k-th Fibonacci number is 1-9 pandigital. A112516

Numbers k such that the number of prime divisors of the k-th Catalan number (counted with multiplicity) divides k. A121612

Numbers k such that 6·prime(k) -+ {1,5} are all prime. A174393

Number of strong (=generic) guillotine rectangulations with n rectangles. A375913

Expansion of 1/((1-x)(1-3x)(1-5x)(1-8x)). A21434