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Properties of the Number 19907

Nineteen Thousand Nine Hundred Seven

Basics

Value: 19906 → 19907 → 19908

Parity: odd

Prime: No

Previous Prime: 19891

Next Prime: 19913

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 17 × 1171

Divisors: 1, 17, 1171, 19907

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110111000011

Octal: 46703

Duodecimal: B62B

Hexadecimal: 4dc3

Square: 396288649

Square Root: 141.0921684573598

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

Trajectory of n under the Reverse and Add! operation carried out in base 3 (presumably) does not reach a palindrome and (presumably) does not join the trajectory of any term m < n. A77405
Number of cubes that can be formed from the points of a cubical grid of n X n X n points. A98928
Semiprimes which are the sum of three distinct positive cubes in two or more distinct ways. A180089
Number of Hamiltonian paths in the graph on n vertices {1,...,n}, with i adjacent to j iff |i-j| in {1,3}. A302119
Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 433", based on the 5-celled von Neumann neighborhood. A272147
Character of extremal vertex operator algebra of rank 17. A28539
Number of ways writing n! as sums of a prime and a nonprime. A62309
Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 10001-11111 pattern in any orientation. A147088
Lexicographically earliest sequence of distinct positive terms such that the product of two consecutive terms has at least 5 distinct prime factors. A285487
Decimal expansion of tangent of 9 degrees. A19907