Properties of the Number -40656

Forty Thousand Six Hundred Fifty-Six

Basics

Value: -40657 → -40656 → -40655

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 7 × 11 ²

Divisors: 1, 2, 3, 4, 6, 7, 8, 11, 12, 14

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -1001111011010000

Octal: -117320

Duodecimal: -1B640

Hexadecimal: -9ed0

Square: 1652910336

Square Root: 201.63333057805696

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

Triangle read by rows: T(n,k) = logarithmic polynomial A_kⁿ(x) evaluated at x=1. A260324

Number of ways to place 2 nonattacking knights on an n X n board. A172132

Expansion of e.g.f. exp(x³ * exp(x)). A292889

Square array A(row,col) = ∑_k=0..row binomial(row,k)*A002110(col+k), read by descending antidiagonals as A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), ... A276586

Expansion of r(q)⁴ / r(q⁴) in powers of q where r() is the Rogers-Ramanujan continued fraction. A285629

Expansion of e.g.f. 1/(1 - x³ * (exp(x) - 1)). A358014

Triangle read by rows: T(n,k) = logarithmic polynomial A_kⁿ(x) evaluated at x=-1. A260325

Transpose of square array A276586. A276587

a(n) = partitions(n)*partitions(n+1). A90982

a(1) = 1, then partial products of ∏_n>=1 (p(n)/p(n-1)*p(n)/p(n-1)) = 1·1*1*(2)*(2)*(3/2)*(3/2)*(5/3)*(5/3)*(7/5)*(7/5)*...*; p = partition numbers, A000041 starting (1, 2, 3, 5, ...). A171646