Properties of the Number 29721

Twenty-Nine Thousand Seven Hundred Twenty-One

Basics

Value: 29720 → 29721 → 29722

Parity: odd

Prime: No

Previous Prime: 29717

Next Prime: 29723

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 9907

Divisors: 1, 3, 9907, 29721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111010000011001

Octal: 72031

Duodecimal: 15249

Hexadecimal: 7419

Square: 883337841

Square Root: 172.39779580957526

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

Triangle read by rows. The reduced triangle of the partition triangle of reducible permutations (A356264). T(n, k) for n >= 1 and 0 <= k < n. A356265

Coefficient of·in the reduction of the n-th Fibonacci polynomial by x³->x²+x+1. A192617

Column 3 of triangle A055907. A55909

Numbers k such that prime(k+1)² == prime(k)² (mod k). A67783

Numbers k such that sopfr((k-1)!) is divisible by k, where sopfr(k) = A001414(k) = sum of primes, with repetition, dividing k. A343424

Number of nXnXnXn triangular pyramidal binary arrays with the number of 0-0 adjacencies equal to the number of 0-1 adjacencies. A183291

θ series of 6-dimensional extremal 5-modular lattice Q6(4)⁺². A29721