Properties of the Number 33620

Thirty-Three Thousand Six Hundred Twenty

Basics

Value: 33619 → 33620 → 33621

Parity: even

Prime: No

Previous Prime: 33619

Next Prime: 33623

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 41 ²

Divisors: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1000001101010100

Octal: 101524

Duodecimal: 17558

Hexadecimal: 8354

Square: 1130304400

Square Root: 183.35757415498276

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) = n*(n+1)²/2. A6002

a(n) = 20·n². A195322

a(n) = n*(2·n+1)². A84367

Minimal m > 0 such that Fibonacci(m) == 0 (mod n³). A132633

a(n) = (p³ - p²)/2, where p = prime(n). A138416

a(n) = n² * floor(n/2). A265645

Practical numbers z such that z² = x² + y² for some practical numbers·and y with gcd(x,y,z) = 4. A294112

Group the natural numbers such that the n-th group sum is divisible by the n-th triangular number: (1), (2, 3, 4), (5, 6, 7), (8, 9, 10, 11, 12), (13, 14, 15, 16, 17), (18, 19, 20, 21, 22, 23, 24), ... Sequence contains the group sum. A86500

Number of spanning trees of the graph acquired by placing a vertex in each of the n² cells of a triangle of size n in a triangular grid and placing edges between two vertices whenever two cells share a side. A351888

a(n) = (-1)ⁿ * n*(n + 1)*(2·n + (-1)ⁿ * (4·n + 5) + 1) / 12. A368047