Properties of the Number 19055

Nineteen Thousand Fifty-Five

Basics

Value: 19054 → 19055 → 19056

Parity: odd

Prime: No

Previous Prime: 19051

Next Prime: 19069

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 37 × 103

Divisors: 1, 5, 37, 103, 185, 515, 3811, 19055

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100101001101111

Octal: 45157

Duodecimal: B03B

Hexadecimal: 4a6f

Square: 363093025

Square Root: 138.03984931895573

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) = n*(14·n-3). A185019

a(n) = 3·a(n-1)-4·a(n-3)+a(n-4)+a(n-5)+3·a(n-6)-a(n-7) for n >= 8, with initial values as shown. A238823

Number of Dyck paths of semilength n, having no ascents and no descents of length 1, and having no UUDD's starting at level 0. A166300

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n, having no ascents and no descents of length 1, and having k UUDD's starting at level 0. A166299

5-digit terms in the continued fraction for π. A48960

Numbers n with ω(n) = ω of 3 nearest larger and 3 nearest smaller neighbors. A101936

Smallest k such that 34^k mod k = n. A178195

Floor(1/{(9+n⁴)^1/4}), where {} = fractional part. A184633

Main diagonal of table A162424. A162429

Square table defined by T(n,k) = ∑_{m=k(k+1)/2..k(k+1)/2+k} [x^m] S(x)ⁿ for n>=1, k>=0, where S(x) = ∑_n>=0 x⁽ⁿ⁺¹(n+2)/2-1), as read by antidiagonals. A162424