Properties of the Number 25604

Twenty-Five Thousand Six Hundred Four

Basics

Value: 25603 → 25604 → 25605

Parity: even

Prime: No

Previous Prime: 25603

Next Prime: 25609

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 37 × 173

Divisors: 1, 2, 4, 37, 74, 148, 173, 346, 692, 6401

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010000000100

Octal: 62004

Duodecimal: 12998

Hexadecimal: 6404

Square: 655564816

Square Root: 160.0124995117569

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) = n³ + (n+1)³ + (n+2)³ + (n+3)³. A27603

a(1)=1; a(n) = ∑_{1<=k<n, gcd(k,n(n+1)/2)=1} a(k). A125597

a(n) = 16·n² + 4. A158444

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 80. A31758

Floor of entry (2,1) of [0,1; 1,φ]ⁿ. A139333

Number of simple graphs on n unlabeled nodes. A88

Number of n-move queen paths on 8x8 board from given corner to same corner. A25604