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Properties of the Number 19212

Nineteen Thousand Two Hundred Twelve

Basics

Value: 19211 → 19212 → 19213

Parity: even

Prime: No

Previous Prime: 19211

Next Prime: 19213

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 2 × 3 × 1601

Divisors: 1, 2, 3, 4, 6, 12, 1601, 3202, 4803, 6404

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101100001100

Octal: 45414

Duodecimal: B150

Hexadecimal: 4b0c

Square: 369100944

Square Root: 138.60735911198944

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

Number of semi-magic (only short lines are magic) knight's tours on a 4 X 2n board. A328816
Number of semi-magic (only short lines are magic) knight's tours on a 4 X n board. A309273
Antidiagonal sums of A147995 and A163545. A163484
Numbers k such that 3k + 100 is prime. A219618
Numbers n such that the sum of the numbers in the Collatz (3x+1) iteration of n is a perfect square. A225866
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 193", based on the 5-celled von Neumann neighborhood. A270687
Numbers k such that k7 - 1 and k7 + 1 are semiprimes. A279272
a(n) is the total surface area of a hollow cubic block (defined as a block with a shell thickness of 1 cube) where n is the edge length of the removed volume. A309842
Members of A014574 with sum of prime factors (with multiplicity) also in A014574. A349455
Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NON = Nonasil-[ 4158 ] [Si88O176].4R starting with a T4 atom. A19212