Properties of the Number 66248

Sixty-Six Thousand Two Hundred Forty-Eight

Basics

Value: 66247 → 66248 → 66249

Parity: even

Prime: No

Previous Prime: 66239

Next Prime: 66271

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 7 ² × 13 ²

Divisors: 1, 2, 4, 7, 8, 13, 14, 26, 28, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000001011001000

Octal: 201310

Duodecimal: 32408

Hexadecimal: 102c8

Square: 4388797504

Square Root: 257.3868683519033

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

Transform of n³ by the Riordan array (1/(1-x²), x). A105636

Numbers of the form p³*q²*r² where p, q, and r are distinct primes. A179695

Sum of cubes of the first n even numbers (A016743). A254371

Primitive coreful abundant numbers: coreful abundant numbers having no coreful abundant aliquot divisor. A339940

a(n) = n⁴/8 if n is even, a(n) = (n²-1)²/8 if n is odd. A212892

Numbers whose square is both a sum and a difference of two positive cubes. A230716

Numbers whose square is expressible as the difference of positive cubes in more than one way. A51393

Composite numbers k+1 such that k*φ(k+1) is a perfect square. A69068

Triangle of the numbers of different forests of m unrooted trees of smallest order 2, i.e., without isolated vertices, on N labeled nodes. A105786

Numbers n such that n is the sum of two nonzero squares while n² is the sum of two positive cubes. A273554