Properties of the Number 25750

Twenty-Five Thousand Seven Hundred Fifty

Basics

Value: 25749 → 25750 → 25751

Parity: even

Prime: No

Previous Prime: 25747

Next Prime: 25759

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 ³ × 103

Divisors: 1, 2, 5, 10, 25, 50, 103, 125, 206, 250

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010010010110

Octal: 62226

Duodecimal: 12A9A

Hexadecimal: 6496

Square: 663062500

Square Root: 160.4680653588121

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) = A063997(n)/4. A88406

Integer part of γ(n+3/10)/γ(3/10). A20062

Number of n X 3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 1 0 vertically. A207106

G.f.: ∑_n>=0 xⁿ * ∑_k=0..n binomial(n,k)² * x^k/(1-3·x)^k. A217665

a(n)² is the start of the first occurrence of n consecutive perfect powers, all of which are squares with exponents equal to 2 (A111245). A340663

Triangle read by rows: T(n,k) = number of peakless Motzkin paths of length n having k (1,1) steps starting at level zero (can be easily expressed also in RNA secondary structure terminology). A89736

a(n) = (1/6)*(n+1)*(10·n² + 17·n + 12). A102296

Number of days after Jan 01 1000 such that the date written in the ISO-8601-format YYYYMMDD is palindromic. A210883

5th-order Patalan numbers (generalization of Catalan numbers). A25750

Square array read by antidiagonals in which T(n,k) is the n-th even number j with the property that the symmetric representation of σ(j) has k parts. A320537