Properties of the Number 19607

Nineteen Thousand Six Hundred Seven

Basics

Value: 19606 → 19607 → 19608

Parity: odd

Prime: No

Previous Prime: 19603

Next Prime: 19609

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 × 2801

Divisors: 1, 7, 2801, 19607

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100110010010111

Octal: 46227

Duodecimal: B41B

Hexadecimal: 4c97

Square: 384434449

Square Root: 140.02499776825564

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

Floor(n·exp(tan n)). A134895

Triangle by rows T(n,k), showing the number of meanders with length 5(n+1) and containing 5(k+1) L's and 5(n-k) R's, where L's and R's denote arcs of equal length and a central angle of 72 degrees which are positively or negatively oriented. A197654

Sum T(n,k) of the entries in the k-th cycles of all permutations of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A285439

Number of asymmetric multidimensional n-ominoes with cell centers determining n-3 space. A355056

a(n) = n⁵ + n⁴ + n³ + n² + n. A152031

Numbers of the form p·q, where p is prime and q=(p^k-1)/(p-1) is also prime for some integer k>1. A330832

Nonprime-powers k such that, for any prime p dividing k and m = 1+floor(log k/log p), rad(p^m (mod k)) divides k, where rad = A007947. A381750

a(0) = 0; a(n) = 7·a(n-1) + 7. A104896

Number of Motzkin paths of length n with no level steps at height 2. A252354

a(n) = 49·n² + 7. A158481