Properties of the Number 40500

Forty Thousand Five Hundred

Basics

Value: 40499 → 40500 → 40501

Parity: even

Prime: No

Previous Prime: 40499

Next Prime: 40507

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ⁴ × 5 ³

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001111000110100

Octal: 117064

Duodecimal: 1B530

Hexadecimal: 9e34

Square: 1640250000

Square Root: 201.24611797498108

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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 (5·n+1)ⁿ * xⁿ / (1 + (5·n+1)*x)ⁿ. A187740

a(n) = ∏_{d∣n, d<n} A260443(d). A293216

Triangle of numbers related to the spectrum of the hydrogen (H) atom. A119937

Achilles numbers whose squarefree kernel is a primorial. A377854

Numbers with prime factorization p²*q³*r⁴ where p, q, and r are distinct primes. A190115

Powerful numbers k that are not prime powers, such that k has a primorial kernel but is not a product of primorials. A369420

Numbers n divisible by exactly five nontrivial permutations (rearrangements) of the digits of n. A90060

First term of A175304 with a given prime signature. A282231

a(n) = ∏_{d∣n, d<n} A276086(d). A319708

Triangle T(n,k) read by rows: T(n,k) = number of ways of seating n people around a table for the second time so that k pairs are maintained. Reflected sequences are counted as one. A326397