Properties of the Number 40528

Forty Thousand Five Hundred Twenty-Eight

Basics

Value: 40527 → 40528 → 40529

Parity: even

Prime: No

Previous Prime: 40519

Next Prime: 40529

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 17 × 149

Divisors: 1, 2, 4, 8, 16, 17, 34, 68, 136, 149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111001010000

Octal: 117120

Duodecimal: 1B554

Hexadecimal: 9e50

Square: 1642518784

Square Root: 201.3156725145859

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

G.f.: ∏_{n >= 0} (1+x²ⁿ⁺¹)/(1-x²ⁿ⁺¹). A80054

Number of length n inversion sequences avoiding the patterns 110, 210, 120, 201, and 010. A279553

Expansion of φ(q²) / φ(-q) in powers of q where φ() is a Ramanujan θ function. A208850

Total number of parts coprime to n in the partitions of n into 8 parts. A363326

Expansion of f(-q) / f(q) in powers of q where f() is a Ramanujan θ function. A108494

Consider the Euler totient function of a number x. Take the sum of its digits. Repeat the process deleting the first addendum and adding the previous sum. The sequence lists the numbers that after some iterations reach x. A269309

a(n) is the least integer k such that k/Fibonacci(n) > sqrt(2). A293419

Expansion of φ(q²) / φ(q) in powers of q where φ() is a Ramanujan θ function. A210065

Number of compositions of n where the difference between largest and smallest parts equals 5 and adjacent parts are unequal. A214274

Number of nonnegative integer arrays of length n+4 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1. A211837