Properties of the Number -123410

One Hundred Twenty-Three Thousand Four Hundred Ten

Basics

Value: -123411 → -123410 → -123409

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 7 × 41 × 43

Divisors: 1, 2, 5, 7, 10, 14, 35, 41, 43, 70

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110001000010010

Octal: -361022

Duodecimal: -5B502

Hexadecimal: -1e212

Square: 15230028100

Square Root: 351.29759464021384

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

Binomial coefficient binomial(n,4) = n*(n-1)*(n-2)*(n-3)/24. A332

Number of intersections of diagonals in the interior of a regular n-gon. A6561

Number of interior points that are the intersections of exactly two chords in the configuration A006561(n). A292104

Binomial coefficients binomial(2·n-3,4). A53126

T(n,k)=Number of nXk 0..3 arrays with exactly floor(nXk/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order. A222747

Doubly pentagonal numbers: a(n) = n*(3·n-2)*(3·n-1)*(3·n+1)/8. A232713

Expansion of ∑_k>0 x^2·k/(1-x^k)⁵. A363605

Binomial coefficient C(n,39). A10992

a(n) = lcm(n, n+1, n+2, n+3)/12. A67047

List of numbers that are both pentagonal (A000326) and binomial coefficients C(n,4) (A000332). A145920