Properties of the Number -39969

Thirty-Nine Thousand Nine Hundred Sixty-Nine

Basics

Value: -39970 → -39969 → -39968

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 36

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 4441

Divisors: 1, 3, 9, 4441, 13323, 39969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001110000100001

Octal: -116041

Duodecimal: -1B169

Hexadecimal: -9c21

Square: 1597520961

Square Root: 199.92248497855363

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) = ∑_k=0..n binomial(4·n+2·k+2,n-k). A390473

Triangle read by rows, T(n, k) = ∑_j=0..k |Stirling1(n, j)|. A349782

Expansion of log(1+x)*exp(tan(x)). A9419

Numbers n such that 49·2ⁿ-1 is prime. A50550

Harmonic mean of digits is 6. A62184