Properties of the Number -9949

Nine Hundred Forty-Nine

Basics

Value: -9950 → -9949 → -9948

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 9949

Divisors: 1, 9949

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011011011101

Octal: -23335

Duodecimal: -5911

Hexadecimal: -26dd

Square: 98982601

Square Root: 99.74467404327912

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) = 2·n³ - 163·n² + 2777·n - 11927. A218458

Number of ways of choosing at most n-1 items from a set of size 2·n+1. A8549

a(n) = 2^n-1 + ((1+(-1)ⁿ)/4)*binomial(n, n/2) - binomial(n, floor(n/2)). A294175

Primes congruent to 2 mod 29. A141978

A convolution triangle of numbers, generalizing Pascal's triangle A007318. A35324

Minimal set of prime-strings in base 10. A71062

Values of n such that L(10) and N(10) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227448

a(n) = ∑_k=0..6 binomial(n,k). A8859

Value of D for incrementally largest values of minimal·satisfying Pell equation x²-Dy²=1. A33316

Numbers in which 9 outnumbers all other digits together. A292739