Properties of the Number 35721

Thirty-Five Thousand Seven Hundred Twenty-One

Basics

Value: 35720 → 35721 → 35722

Parity: odd

Prime: No

Previous Prime: 35677

Next Prime: 35729

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 7 ²

Divisors: 1, 3, 7, 9, 21, 27, 49, 63, 81, 147

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000101110001001

Octal: 105611

Duodecimal: 18809

Hexadecimal: 8b89

Square: 1275989841

Square Root: 189

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

Numbers of the form 3ⁱ*7^j with i, j >= 0. A3594

Number of 2 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically. A207170

a(n) = (6·n+3)². A16946

Largest square <= n³. A65733

Numbers whose prime factors are 3 and 7. A33850

a(n) = |1³ - 2³ + 3³ - 4³ + ... + (-1)ⁿ⁺¹*n³|. A11934

Odd refactorable numbers. A36896

Table T(n,k) giving number of spanning trees in complete bipartite graph K(n,k), read by antidiagonals. A72590

Smallest multiple k·n of n having n divisors. A73904

Numbers with prime factorization p²*q⁶. A189990