Properties of the Number 49864

Forty-Nine Thousand Eight Hundred Sixty-Four

Basics

Value: 49863 → 49864 → 49865

Parity: even

Prime: No

Previous Prime: 49853

Next Prime: 49871

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 23 × 271

Divisors: 1, 2, 4, 8, 23, 46, 92, 184, 271, 542

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100001011001000

Octal: 141310

Duodecimal: 24A34

Hexadecimal: c2c8

Square: 2486418496

Square Root: 223.3024854317569

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) = ∑_k=0..n (n-k+1)^k. A26898

Position of first appearance of each integer in A088568 (number of 1's minus number of 2's in first n terms of A000002). A288605

Triangle, read by rows, where T(n,k) = ∑_j=0..n-k-1 C(j+k,j)*T(n-1,j+k) for n>k>=0 with T(n,n)=1. A101494

Least k such that the first k terms of the Kolakoski sequence (A000002) contain n more 2's than 1's. A25503

a(n) = index where A088568 (or equally A294448) first reaches or exceeds n in magnitude. A294449

a(n) = n*((2·n + 1)*(2·n² + 2·n + 3) - 3*(-1)ⁿ)/24. A325517

Number of n-th generation nodes of a rooted binary tree whose m-th node has exactly A000002(m) descendants, where A000002 is the Kolakoski sequence. A329758

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 27 ones. A31795

First row of spectral array W(3^1/3). A249179

a(n) = ∑_{k=0,1,2,...,n-4,n-2,n-1} a(k); a(n-3) is not a summand, with a(0)=a(1)=a(2)=1. A49864