Properties of the Number -257049

Two Hundred Fifty-Seven Thousand Forty-Nine

Basics

Value: -257050 → -257049 → -257048

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 ⁴

Divisors: 1, 3, 9, 13, 39, 117, 169, 507, 1521, 2197

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111110110000011001

Octal: -766031

Duodecimal: -104909

Hexadecimal: -3ec19

Square: 66074188401

Square Root: 507

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

Expansion of e.g.f. cos(tan(x)/cosh(x)), even terms only. A9082

Numbers of the form (3ⁱ)*(13^j). A107364

Solutions to mod(σ(x), 6) = 5. A74384

Squares that are a difference between 2 positive cubes. A38596

a(n) = n⁴ - 2·n³ + 3·n² - 2·n + 1, the Alexander polynomial for reef and granny knots. A58031

Expansion of g.f. (1-4·x)/(1-13·x). A196663

Fixed points of A153212: After a(1) = 1, numbers of the form p_i1ⁱ¹ * p_i2^i2-i1 * p_i3^i3-i2 * ... * p_ik^ik-i_k-1, where p_i's are distinct primes present in the prime factorization of n, with i1 < i2 < i3 < ... < ik, and k = A001221(n) and ik = A061395(n). A242421

Integers m such that A240923(m) = 1, where A240923(n) = numerator(σ(n)/n) - σ(denominator(σ(n)/n)). A240991

Numbers k such that A071187(k) <> A329614(k). A329613

Numbers of the form (9ⁱ)*(13^j), with i, j >= 0. A108748