Properties of the Number -43405

Forty-Three Thousand Four Hundred Five

Basics

Value: -43406 → -43405 → -43404

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 8681

Divisors: 1, 5, 8681, 43405

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010100110001101

Octal: -124615

Duodecimal: -21151

Hexadecimal: -a98d

Square: 1883994025

Square Root: 208.33866659840174

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

G.f. L(x,y) satisfies: L(x,y) = x * (1 + y·x*L'(x,y)) / (1 + x·L'(x,y)) where L'(x,y) = d/dx L(x,y), as a triangle read by rows. A301305

Least positive integer k such that both k and k·n belong to the set {m>0: 2·prime(prime(m))+1 = prime(p) for some prime p}. A261362

a(n) = ceiling(a(n-1)/2) + a(n-2) with a(0)=0 and a(1)=1. A64651

Starting positions of strings of four 2's in the decimal expansion of π. A83607

Number of partitions of n² into exactly 4 prime numbers. A243940