Properties of the Number -39711

Thirty-Nine Thousand Seven Hundred Eleven

Basics

Value: -39712 → -39711 → -39710

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 31 × 61

Divisors: 1, 3, 7, 21, 31, 61, 93, 183, 217, 427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

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Representations

Binary: -1001101100011111

Octal: -115437

Duodecimal: -1AB93

Hexadecimal: -9b1f

Square: 1576963521

Square Root: 199.27619024860948

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) = 1² + 3² + 5² + 7² + ... + (2·n-1)² = n*(4·n² - 1)/3. A447

Dodecahedral numbers: a(n) = n*(3·n - 1)*(3·n - 2)/2. A6566

Number of integer partitions of n such that, for all parts x, x - 1 or x + 1 is also a part. A355394

Odd tetrahedral numbers: a(n) = (4·n+1)*(4·n+2)*(4·n+3)/6. A15219

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero. A303896

Squarefree tetrahedral numbers. A70755

Greedy-summable tetrahedral numbers. A242291

Expansion of e.g.f. exp( 3·x * (exp(x) - 1) ). A351734

Binomial coefficients C(63,n). A17779

G.f.: ∑_n>=0 (n+1)*(n+2)*(n+3)/3! * (x + xⁿ)ⁿ. A325999