Properties of the Number 48440

Forty-Eight Thousand Four Hundred Forty

Basics

Value: 48439 → 48440 → 48441

Parity: even

Prime: No

Previous Prime: 48437

Next Prime: 48449

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 7 × 173

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1011110100111000

Octal: 136470

Duodecimal: 24048

Hexadecimal: bd38

Square: 2346433600

Square Root: 220.09089031579657

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

Starting index of a string of exactly 5 consecutive equal digits in decimal expansion of π. A49521

Starting index of a string of 5 or more consecutive equal digits in decimal expansion of π. A49517

Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect. A327948

a(n) = 121·n² + 2·n. A181679

Terms satisfy: a(2·n) = a(n)*b(n) and a(2·n+1) = a(n)*b(n+1) for n>=0 with a(0)=1, where A(x)² = ∑_n>=0 b(n)*xⁿ and g.f. A(x) = ∑_n>=0 a(n)*xⁿ. A257889

The number of walks of n steps on the hexagonal lattice that start at the origin and end at the adjacent vertex (1,0). A337905

Starting positions of strings of four 6's in the decimal expansion of π. A83626

Number of increasing subsequences that can be made from the sequence of successive numbers. A91955

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 11. A31689

Triangle read by rows, Xⁿ * [1,0,0,0,...]; where X = a tridiagonal matrix with (1,1,1,...) in the main and subsubdiagonals and (1,2,3,...) in the subdiagonal. A140734