Properties of the Number -40022

Forty Thousand Twenty-Two

Basics

Value: -40023 → -40022 → -40021

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 × 20011

Divisors: 1, 2, 20011, 40022

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001110001010110

Octal: -116126

Duodecimal: -1B1B2

Hexadecimal: -9c56

Square: 1601760484

Square Root: 200.05499243957897

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

Hypercomma numbers: n occurs in the sequence S[k+1]=S[k]+10·last_digit(S[k-1])+first_digit(S[k]) for each "legal" splitting n=concat(S[0],S[1]). A166508

Numbers n such that z(n) and z(n+1) are both prime, where z(n) = a^d + b^d + c^d + ..., where a·b*c* ... is the prime factorization of n and d is the largest digit of n. A109280

a(n) = a(n-1) - 4·a(n-2), a(0)=1, a(1)=2. A133631

Number of nonempty subsets of {1,2,...,n} in which exactly 1/4 of the elements are <= (n-4)/2. A48063