Properties of the Number 2601

Two Thousand Six Hundred One

Basics

Value: 2600 → 2601 → 2602

Parity: odd

Prime: No

Previous Prime: 2593

Next Prime: 2609

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 ²

Divisors: 1, 3, 9, 17, 51, 153, 289, 867, 2601

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101000101001

Octal: 5051

Duodecimal: 1609

Hexadecimal: a29

Square: 6765201

Square Root: 51

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

Odd squares: a(n) = (2n+1)². Also centered octagonal numbers. A16754

Powerful numbers (A001694) that are not prime powers (A000961). A286708

Pentagonal pyramidal numbers: a(n) = n²*(n+1)/2. A2411

Perfect powers of nonprimes (m^k where m is a nonprime positive integer and k >= 2). A131605

Squarefree numbers squared. A62503

a(n) = n * ∏_{primes p∣n} p. A64549

Squares of the squarefree semiprimes (p²*q²). A85986

Powers of composite squarefree numbers that are not squarefree. A303606

Generalized 21-gonal (or icosihenagonal) numbers: m*(19·m - 17)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303298

a(n) = n*(n² - 6·n + 11)/6. A50407