Properties of the Number 56870

Fifty-Six Thousand Eight Hundred Seventy

Basics

Value: 56869 → 56870 → 56871

Parity: even

Prime: No

Previous Prime: 56857

Next Prime: 56873

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 11 ² × 47

Divisors: 1, 2, 5, 10, 11, 22, 47, 55, 94, 110

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101111000100110

Octal: 157046

Duodecimal: 28AB2

Hexadecimal: de26

Square: 3234196900

Square Root: 238.4743172754668

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

Number of solutions to +-1³ +- 2³ +- 3³ +- ... +- n³ = n. A348892

Numbers n whose sum of divisors equals the sum of divisors of 2n+1. A272553

Solution of the complementary equation a(n) = a(n-1)*b(n-2) - 1, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4. A294382

a(n) = (9·n+1)*(9·n+8). A1534

McKay-Thompson series of class 30E for Monster. A58616

Triangle T(n,k), 0<=k<=n, read by rows given by [1,1,2,1,2,1,2,1,2,1,2,...] δ [1,1,0,0,0,0,0,0,0,...] where δ is the operator defined in A084938. A167656

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood. A273311

Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299571

T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero. A299574

Difference between partial sums of partition numbers (A026905) and partial sums of numbers of partitions into distinct parts (A026906). A56870