Properties of the Number 57026

Fifty-Seven Thousand Twenty-Six

Basics

Value: 57025 → 57026 → 57027

Parity: even

Prime: No

Previous Prime: 56999

Next Prime: 57037

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 28513

Divisors: 1, 2, 28513, 57026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101111011000010

Octal: 157302

Duodecimal: 29002

Hexadecimal: dec2

Square: 3251964676

Square Root: 238.80117252643464

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 whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3). A111299

Triangle read by rows: row n>=1 contains in increasing order the Matula numbers of the rooted binary trees with n leaves. A245824

Number of surviving even nodes at generation n in the binary tree of persistently squarefree numbers (see A293230). A293518

Matula-Goebel numbers of unlabeled binary rooted semi-identity trees. A339193

Number of triples (a, b, c) with gcd(a, b, c) = 1 and -n <= a,b,c <= n. A175549

a(n) = ceiling(A003269(n)/2). A173674

Smallest prime of form (2n+1)*2^m-1 for some m, or 0 if no such prime exists. A57026