Properties of the Number 65128

Sixty-Five Thousand One Hundred Twenty-Eight

Basics

Value: 65127 → 65128 → 65129

Parity: even

Prime: No

Previous Prime: 65123

Next Prime: 65129

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 7 × 1163

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 1163, 2326

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111111001101000

Octal: 177150

Duodecimal: 31834

Hexadecimal: fe68

Square: 4241656384

Square Root: 255.20188087081178

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

Numbers k which have a factorization k = f1·f2*...*fr where the digits of {k, f1, f2, ..., fr} together give 0,1,...,9 exactly once. A370970

a(n) = smallest k such that A260273(k) >= 2ⁿ. A261396

Numbers k which use half of the ten digits such that they have at least one factorization k=p·q that uses remaining half of the digits that are not in k. A195814

Numbers k which have a factorization k = f₁*f₂*...*f_r where f_i >= 1 and the digits of {k, f₁, f₂, ..., f_r} together give 0,1,...,9 exactly once. A372259

Tetradic primes (primes in A006072). A68188

Number of invertible n X n matrices mod 4 (i.e., over the ring Z₄). A65128