Properties of the Number 43021

Forty-Three Thousand Twenty-One

Basics

Value: 43020 → 43021 → 43022

Parity: odd

Prime: No

Previous Prime: 43019

Next Prime: 43037

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 11 × 3911

Divisors: 1, 11, 3911, 43021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010100000001101

Octal: 124015

Duodecimal: 20A91

Hexadecimal: a80d

Square: 1850806441

Square Root: 207.41504284887344

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

Numbers n such that φ(φ(n)) + σ(σ(n)) - φ(σ(n)) - σ(φ(n)) = φ(n). A66945

Cubes written in base 7. A4637

Integers·such that [f(0), f(f(0)), ..., f(...f(0)...)] is a permutation of [0, 1, ..., k-1], where k is the number of digits in·and f(a) denotes the 0-based index of the first occurrence of the substring a in x. A307620

Ménage numbers: a(0) = 1, a(1) = -1, and for n >= 2, a(n) = number of permutations s of [0, ..., n-1] such that s(i) ≠ i and s(i) ≠ i+1 (mod n) for all i. A179

Base-8 palindromes that start with 1. A43021