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Properties of the Number -258720

Two Hundred Fifty-Eight Thousand Seven Hundred Twenty

Basics

Value: -258721 → -258720 → -258719

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 5 × 3 × 5 × 7 2 × 11

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 11

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111111001010100000

Octal: -771240

Duodecimal: -105880

Hexadecimal: -3f2a0

Square: 66936038400

Square Root: 508.6452594883786

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

Number T(n,k) of primitive (= aperiodic) n-bead necklaces with colored beads of exactly k different colors; triangle T(n,k), n >= 0, 0 <= k <= n, read by rows. A254040
Triangle read by rows: T(n,k) is the number of n-bead necklaces with exactly k different colored beads. A87854
T(n,k)=Number of nXk 0..3 arrays with no element equal to the sum modulo 4 of elements to its left or elements above it. A238775
Triangle T, read by rows, where T(n,k) = A008544(n-k)*C(n,k) where A008544 equals the triple factorials in column 0. A136216
Triangle T(n,k) (n >= 2, 2 <= k <= n-1 if n > 2) giving number of non-crossing trees with n nodes and k endpoints. A72247
Record gaps between nonprime prime powers. A167186
Triangle of coefficients T(n,k) of yk in ∏k=0..n-1 (1 + (k+2)*y + y2), read by rows of terms k = 0..2·n, for n >= 0. A324960
Expansion of e.g.f. 1/(1 - (exp(x2) - 1)/x). A375795
Numerator of the harmonic mean of the first n composite numbers. A250132
Number of primitive (=aperiodic) n-bead necklaces with colored beads of exactly 7 different colors. A254079