Properties of the Number 19454

Nineteen Thousand Four Hundred Fifty-Four

Basics

Value: 19453 → 19454 → 19455

Parity: even

Prime: No

Previous Prime: 19447

Next Prime: 19457

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 71 × 137

Divisors: 1, 2, 71, 137, 142, 274, 9727, 19454

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101111111110

Octal: 45776

Duodecimal: B312

Hexadecimal: 4bfe

Square: 378458116

Square Root: 139.47759676736618

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

a(n) = C(n+2,3) + 2·C(n,2) + 2*(n-2). A34857

Denominators of continued fraction convergents to sqrt(928). A42795

Satisfies a(n)/A079159(n) = p_n, the n-th prime (n>0), a(0)=1. A79161

a(n) = (9·n+2)*(9·n+7). A177072

Coordination sequence for σ-CrFe, Position Xf. A9958

Triangle read by rows: T(n,k) is the number of ordered trees with n edges and having k branches of even length (n>=0, 0<=k<=floor(n/2)). A102004

Number of n-bead necklaces labeled with numbers 1..5 allowing reversal, with no adjacent beads differing by more than 1. A208718

a(n) = (5·n+2)*(5·n+7). A85036

Number of 4-power-free binary words of length n. A273154

Number of rooted level-1 phylogenetic networks with n labeled leaves. A328122