Properties of the Number -249904

Two Hundred Forty-Nine Thousand Nine Hundred Four

Basics

Value: -249905 → -249904 → -249903

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 15619

Divisors: 1, 2, 4, 8, 16, 15619, 31238, 62476, 124952, 249904

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111101000000110000

Octal: -750060

Duodecimal: -100754

Hexadecimal: -3d030

Square: 62452009216

Square Root: 499.9039907822301

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

T(n, k) = E(n, k)*2^k where E(n,k) are the Eulerian numbers A173018, for n > 0 and 0 <= k <= n-1, additionally T(0,0) = 1. A156365

Signed recurrence over enriched r-trees: a(n) = 2 * (-1)ⁿ + Sum_y ∏_{i in y} a(y) where the sum is over all integer partitions of n - 1. A301469

Triangle T(n, k) = 2^k-1 * E(n, k-1) where E(n,k) are the Eulerian numbers A173018, read by rows. A142075

A169759(n)/6. A169760

Triangle read by rows: T(n,k) = 2^k*A123125(n,k). A141660