Properties of the Number 13655

Thirteen Thousand Six Hundred Fifty-Five

Basics

Value: 13654 → 13655 → 13656

Parity: odd

Prime: No

Previous Prime: 13649

Next Prime: 13669

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 2731

Divisors: 1, 5, 2731, 13655

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11010101010111

Octal: 32527

Duodecimal: 7A9B

Hexadecimal: 3557

Square: 186459025

Square Root: 116.85461052093751

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) = ceiling((∑_k=1..n-1 a(k)) / 2) for n >= 2 starting with a(1) = 1. A73941

a(n) = ceiling((1 + sum of preceding terms) / 2) starting with a(0) = 1. A5428

Numbers k such that 3^k + 22 is prime. A219042

Palindromic numbers in bases 4 and 7 written in base 10. A259378

Numbers k such that A003313(k) = A003313(6·k). A116461

T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A223000

a(n) = ∑_{k=0..floor(2·n/5)} binomial(k,2·n-5·k). A391265

Subsequence of A005428 where state = 2. A81615

Inverse binomial transform of A140359. A140360

Number of compositions of 6·n-2 into parts 5 and 6. A373962