Properties of the Number 2900

Two Thousand Nine Hundred

Basics

Value: 2899 → 2900 → 2901

Parity: even

Prime: No

Previous Prime: 2897

Next Prime: 2903

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 ² × 29

Divisors: 1, 2, 4, 5, 10, 20, 25, 29, 50, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101010100

Octal: 5524

Duodecimal: 1818

Hexadecimal: b54

Square: 8410000

Square Root: 53.85164807134504

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) = ∑_d∣n (-1)^d-1*d². A321543

a(n) = (n-1)*n*(n+4)/6. A5581

Number of reduced words of length n in the Weyl group D₂₅. A162367

Sum of squares of odd divisors of n. A50999

Numbers m that are the hypotenuse of exactly 7 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 7 ways. A97101

Products of exactly 2 distinct squares of primes and a different prime (p² * q² * r). A179643

Triangle read by rows: T(n,k) = number of vertices in a "frame" of size n X k (see Comments in A331457 for definition). A332599

a(n) = ∑_k=0..n A026626(n, k). A26633

Second 11-gonal (or hendecagonal) numbers: a(n) = n*(9·n+7)/2. A62728

Number of Pythagorean triples mod n: total number of solutions to x² + y² = z² mod n. A62775