Properties of the Number -212112

Two Hundred Twelve Thousand One Hundred Twelve

Basics

Value: -212113 → -212112 → -212111

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 491

Divisors: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011110010010000

Octal: -636220

Duodecimal: -A2900

Hexadecimal: -33c90

Square: 44991500544

Square Root: 460.5561854974917

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

Positive numbers n such that n is a multiple of (product of digits of n) * (sum of digits of n). A49102

List of subwords of A003842 arranged in lexicographic order. A213975

List of words over {1,2} with equal numbers of 1's and 2's. A214218

Expansion of (theta₃(z)*theta₃(7z) + theta₂(z)*theta₂(7z))⁴. A28596

a(n) is the smallest number k such that d(1)*1! + d(2)*2! + ... + d(p)*p! = n², where d(i) are the decimal digits of k. A198095

a(n) is the binary word s21s211s2 where s is a string of n 1's. A246999

Number of (n+1) X (4+1) arrays of permutations of 0..n·5+4 with each element having directed index change 0,1 1,0 2,1 or -1,-1. A264472