Properties of the Number 51529

Fifty-One Thousand Five Hundred Twenty-Nine

Basics

Value: 51528 → 51529 → 51530

Parity: odd

Prime: No

Previous Prime: 51521

Next Prime: 51539

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 227 ²

Divisors: 1, 227, 51529

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100101001001

Octal: 144511

Duodecimal: 259A1

Hexadecimal: c949

Square: 2655237841

Square Root: 227

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

Number of integer partitions of 2n - 1 with the same length as alternating sum. A357488

a(n) = (6·n + 5)². A16970

Squares of primes lacking the digit zero in their decimal expansion. A52043

a(n) = (11·n + 7)². A17474

Squares with initial digit '5'. A45788

Matula-Goebel numbers of orderless same-trees with all leaves equal to 1. A291441

Composite numbers k such that the sum of the divisors of k² is a prime. A65405

Squares of lesser of twin primes. A108570

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