Properties of the Number 43121

Forty-Three Thousand One Hundred Twenty-One

Basics

Value: 43120 → 43121 → 43122

Parity: odd

Prime: No

Previous Prime: 43117

Next Prime: 43133

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 13 × 31 × 107

Divisors: 1, 13, 31, 107, 403, 1391, 3317, 43121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100001110001

Octal: 124161

Duodecimal: 20B55

Hexadecimal: a871

Square: 1859420641

Square Root: 207.65596548137017

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

a(n) is the number k such that 2^2k+1-1 = A000668(n+1). A146768

Number of (binary) heaps with element set [n] and length n+1. A373496

Number of (binary) heaps of length n whose element set equals {1,2,3,4}. A376963

Numbers k such that 1 and 2 occur juxtaposed in the base-6 representation of k but not of k-1. A43121