Properties of the Number 23085

Twenty-Three Thousand Eighty-Five

Basics

Value: 23084 → 23085 → 23086

Parity: odd

Prime: No

Previous Prime: 23081

Next Prime: 23087

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁵ × 5 × 19

Divisors: 1, 3, 5, 9, 15, 19, 27, 45, 57, 81

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101101000101101

Octal: 55055

Duodecimal: 11439

Hexadecimal: 5a2d

Square: 532917225

Square Root: 151.9374871452072

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

Palindromic numbers in bases 2 and 8 written in base 10. A259380

a(n) = ∑_{k=0..floor(n/3)} C(n-k,2·k)*3^n-2·k. A99783

Expansion of 1/(1-81·x)^1/9, related to 9-factorial numbers A045756. A35024

Number of walks on square lattice. A5565

a(n) is the number of vertices formed by n-secting the angles of a nonagon (enneagon). A335782

Odd numbers divisible by exactly 7 primes (counted with multiplicity). A46320

a(n) = 64·n² - n. A157948

a(n) = 361·n² - 19. A158595

Sum of squares of numbers less than n that do not divide n. A276984

Number of partitions of n into parts not of the form 21k, 21k+6 or 21k-6. Also number of partitions with at most 5 parts of size 1 and differences between parts at distance 9 are greater than 1. A35984