Properties of the Number 40585

Forty Thousand Five Hundred Eighty-Five

Basics

Value: 40584 → 40585 → 40586

Parity: odd

Prime: No

Previous Prime: 40583

Next Prime: 40591

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 8117

Divisors: 1, 5, 8117, 40585

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111010001001

Octal: 117211

Duodecimal: 1B5A1

Hexadecimal: 9e89

Square: 1647142225

Square Root: 201.45719148245863

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

Factorions: equal to the sum of the factorials of their digits in base 10 (cf. A061602). A14080

Irregular table read by rows, in which row n lists the factorions in base n, for n >= 2. A193163

Amicable factorions. A254499

Let f map k to the sum of the factorials of the digits of k (A061602); sequence lists numbers such that f(f(f(k)))=k. A306955

Finite sequence of numbers n such that iterations for the map r -> A061602(r) starting with n ends with the same number n. A188284

a(n) = a(n-1) + a(n-2) + 5 where a(0) = a(1) = 1. A111721

Numbers that can be truncated in base 10 such that the sum of the factorials of the truncations equals that number. A182478

Numbers that divide the sum of the factorials of their digits in base 10. A247227

Numbers divisible by the sum of factorials of their digits [A061602(n)] and also terminate in the sum of factorials of their digits. A71064

Partial sums of orders of finite perfect groups (A060793). A121513