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Properties of the Number -11720

Eleven Thousand Seven Hundred Twenty

Basics

Value: -11721 → -11720 → -11719

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 3 × 5 × 293

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 293, 586

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -10110111001000

Octal: -26710

Duodecimal: -6948

Hexadecimal: -2dc8

Square: 137358400

Square Root: 108.25894882179486

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

McKay-Thompson series of class 20D for Monster. A58553
Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m·k + 1)*T(n-1, k, m) - m·k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 5, read by rows. A157156
A014486-codes for the compact representation of Beanstalk-tree, growing by two natural numbers at time, starting from the tree of one internal node (1) and two leaves (2 and 3), with the lesser numbers coming to the left hand side. A218780
Number of dissections of an n-gon into 3- and 4-gons counted up to rotations and reflections. A290646
McKay-Thompson series of class 40B for the Monster group. A112179
Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 53. A31551
Number of chains in the poset of all odd-sized subsets of {1,2,...,n} ordered by inclusion. A260504
G.f. satisfies A(x) = 1 + x / (1 - x·A(x))5. A365115
Number of labeled 3-nilpotent semigroups of order n. A383871
Consider the sequence b(k) such that b(k) and σ(b(k)) end with the same digit in base 10. Sequence gives values of b(k) such that b(k)/k = 10. A65255