Properties of the Number 2501

Two Thousand Five Hundred One

Basics

Value: 2500 → 2501 → 2502

Parity: odd

Prime: No

Previous Prime: 2477

Next Prime: 2503

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 41 × 61

Divisors: 1, 41, 61, 2501

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111000101

Octal: 4705

Duodecimal: 1545

Hexadecimal: 9c5

Square: 6255001

Square Root: 50.00999900019995

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

Pentagonal numbers: a(n) = n*(3·n-1)/2. A326

a(n) = n² + 1. A2522

a(n) = 4·n² + 1. A53755

Monotonic ordering of set S generated by these rules: if·and y are in S then x² + y² is in S, and 1 is in S. A192476

Hexanacci numbers with a(0) = ... = a(5) = 1. A383

Number of solenoidal flows (flow in = flow out) in a 3 X 3 square array with integer velocities -n .. n. A68722

Diagonal in square spiral or maze arrangement of natural numbers. A80335

Total number of toothpicks in the toothpick structure A139250 that are parallel to the initial toothpick, after n odd rounds. A162795

Number of integer partitions of n whose length cannot be written as a nonnegative linear combination of the distinct parts. A367219

Semiprimes of the form k²+1. A144255