Properties of the Number -103680

One Hundred Three Thousand Six Hundred Eighty

Basics

Value: -103681 → -103680 → -103679

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁸ × 3 ⁴ × 5

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11001010100000000

Octal: -312400

Duodecimal: -50000

Hexadecimal: -19500

Square: 10749542400

Square Root: 321.99378875996973

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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 log(1+x)/cosh(log(1+x)). A9430

Triangular sequence based on the coefficients of the magnetic model for q=1/2: p(x,t)=Exp[x·t]*((t² + 1/2 - 1)/(2·t + 1/2 - 2))². A137481

Alternate Lucas numbers - 2. A4146

13-almost primes (generalization of semiprimes). A69274

Associated Mersenne numbers. A1350

Products of distinct factorials. A58295

Smallest number k such that the symmetric representation of σ(k) has maximum width n for those k whose representation has nondecreasing width up to the diagonal. A250071

Smallest integer that can be expressed as the sum of consecutive odd numbers in exactly n ways. A68314

Numbers n such that n! is a product of distinct factorials k!*l!*m!*... with k, l, m, etc. < n. A75082

Highly totient numbers: each number k on this list has more solutions to the equation φ(x) = k than any preceding k (where φ is Euler's totient function, A000010). A97942