Properties of the Number -249001

Two Hundred Forty-Nine Thousand One

Basics

Value: -249002 → -249001 → -249000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 499 ²

Divisors: 1, 499, 249001

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111100110010101001

Octal: -746251

Duodecimal: -100121

Hexadecimal: -3cca9

Square: 62001498001

Square Root: 499

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

Numerator of Euler(n, 9/20). A156757

Expansion of e.g.f.: exp(4·x/(1-x)) / sqrt(1-x²). A202827

Squares whose internal digits form a square. A77355

After the initial 1, numbers k such that A347381 obtains its minimum value at k, of all the divisors d of k larger than one, where A347381 is the distance from n to the nearest common ancestor of n and σ(n) in the Doudna-tree (A005940). A374218

Composite numbers whose prime factors have no digits other than 4's and 9's. A36319

Numbers c such that a + b + c = d are abcd quadruples in the "abcd-conjecture" with a < b < c < d, all |a|, b, c, d are pairwise coprime, the quality q of the quadruple has q > 1, term a = +/- 1 = A376149(n) and term b = A376144(n) (with repetitions and sorted by c then b). A376143

Numbers n such that σ(d(n³))==d(σ(n²)), where d(n) is the number of divisors of n. A63797

Squares such that digits of sqrt(n) appear in both n and n^3/2. A29781

a(n) = prime² and digits of prime appear in a(n). A30081

Squares with internal digits also forming a square > 0. A69701