Properties of the Number 6156

Six Thousand One Hundred Fifty-Six

Basics

Value: 6155 → 6156 → 6157

Parity: even

Prime: No

Previous Prime: 6151

Next Prime: 6163

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ⁴ × 19

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 19, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100000001100

Octal: 14014

Duodecimal: 3690

Hexadecimal: 180c

Square: 37896336

Square Root: 78.46018098373213

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) = n²*(n+1). A11379

Expansion of g.f.: (1+x)/(1-18·x). A170738

a(n) = ∑_k=1..n k*σ(k). A143128

Triangle T(n,k), read by rows, given by (2,1/2,3/2,0,0,0,0,0,0,0,...) δ (0,1/2,-1/2,0,0,0,0,0,0,0,...) where δ is the operator defined in A084938. A201730

Paradigm shift sequence for (4,5) production scheme with replacement. A246099

Paradigm shift sequence for (5,5) production scheme with replacement. A246103

Positive numbers whose product of digits is 10 times their sum. A62043

T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,1) or (-1,-2) and new values introduced in order 0..2. A275352

A generalization of triangle A071951 (Legendre-Stirling). A89504

Numbers k such that 13·k = A048720(29,k), where A048720 is carryless base-2 multiplication. A115805