Properties of the Number 3128

Three Thousand One Hundred Twenty-Eight

Basics

Value: 3127 → 3128 → 3129

Parity: even

Prime: No

Previous Prime: 3121

Next Prime: 3137

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 17 × 23

Divisors: 1, 2, 4, 8, 17, 23, 34, 46, 68, 92

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000111000

Octal: 6070

Duodecimal: 1988

Hexadecimal: c38

Square: 9784384

Square Root: 55.92852581643825

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

Expansion of 1/((1-x)⁴*(1+x)). A2623

Number of (w,x,y) such that w,x,y are all in {0,...,n} and |w-x| = |x-y|. A212959

Primitive abundant numbers (abundant numbers all of whose proper divisors are deficient numbers). A71395

Numbers that are the sum of 4 positive 5th powers. A3349

Primitive nondeficient numbers. A6039

a(n) = n*(n+1)*(4·n+5)/6. A16061

Numbers k such that 2^k - 5 is prime. A59608

Four times pentagonal numbers: a(n) = 2·n*(3·n-1). A33579

Numbers m such that 6·m+1 is a perfect square. A62717

Partial sums of A002620. A173196